forked from luck/tmp_suning_uos_patched
lseek: the "whence" argument is called "whence"
But the kernel decided to call it "origin" instead. Fix most of the sites. Acked-by: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
c0f041602c
commit
965c8e59cf
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@ -16,7 +16,7 @@
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#include <linux/poll.h>
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static loff_t bad_file_llseek(struct file *file, loff_t offset, int origin)
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static loff_t bad_file_llseek(struct file *file, loff_t offset, int whence)
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{
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return -EIO;
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}
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@ -321,7 +321,7 @@ static int blkdev_write_end(struct file *file, struct address_space *mapping,
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* for a block special file file->f_path.dentry->d_inode->i_size is zero
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* so we compute the size by hand (just as in block_read/write above)
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*/
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static loff_t block_llseek(struct file *file, loff_t offset, int origin)
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static loff_t block_llseek(struct file *file, loff_t offset, int whence)
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{
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struct inode *bd_inode = file->f_mapping->host;
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loff_t size;
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@ -331,7 +331,7 @@ static loff_t block_llseek(struct file *file, loff_t offset, int origin)
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size = i_size_read(bd_inode);
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retval = -EINVAL;
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switch (origin) {
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switch (whence) {
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case SEEK_END:
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offset += size;
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break;
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@ -2120,7 +2120,7 @@ static long btrfs_fallocate(struct file *file, int mode,
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return ret;
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}
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static int find_desired_extent(struct inode *inode, loff_t *offset, int origin)
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static int find_desired_extent(struct inode *inode, loff_t *offset, int whence)
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{
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struct btrfs_root *root = BTRFS_I(inode)->root;
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struct extent_map *em;
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@ -2154,7 +2154,7 @@ static int find_desired_extent(struct inode *inode, loff_t *offset, int origin)
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* before the position we want in case there is outstanding delalloc
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* going on here.
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*/
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if (origin == SEEK_HOLE && start != 0) {
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if (whence == SEEK_HOLE && start != 0) {
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if (start <= root->sectorsize)
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em = btrfs_get_extent_fiemap(inode, NULL, 0, 0,
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root->sectorsize, 0);
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@ -2188,13 +2188,13 @@ static int find_desired_extent(struct inode *inode, loff_t *offset, int origin)
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}
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}
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if (origin == SEEK_HOLE) {
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if (whence == SEEK_HOLE) {
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*offset = start;
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free_extent_map(em);
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break;
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}
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} else {
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if (origin == SEEK_DATA) {
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if (whence == SEEK_DATA) {
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if (em->block_start == EXTENT_MAP_DELALLOC) {
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if (start >= inode->i_size) {
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free_extent_map(em);
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@ -2231,16 +2231,16 @@ static int find_desired_extent(struct inode *inode, loff_t *offset, int origin)
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return ret;
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}
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static loff_t btrfs_file_llseek(struct file *file, loff_t offset, int origin)
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static loff_t btrfs_file_llseek(struct file *file, loff_t offset, int whence)
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{
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struct inode *inode = file->f_mapping->host;
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int ret;
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mutex_lock(&inode->i_mutex);
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switch (origin) {
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switch (whence) {
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case SEEK_END:
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case SEEK_CUR:
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offset = generic_file_llseek(file, offset, origin);
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offset = generic_file_llseek(file, offset, whence);
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goto out;
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case SEEK_DATA:
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case SEEK_HOLE:
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@ -2249,7 +2249,7 @@ static loff_t btrfs_file_llseek(struct file *file, loff_t offset, int origin)
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return -ENXIO;
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}
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ret = find_desired_extent(inode, &offset, origin);
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ret = find_desired_extent(inode, &offset, whence);
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if (ret) {
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mutex_unlock(&inode->i_mutex);
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return ret;
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@ -454,7 +454,7 @@ static void reset_readdir(struct ceph_file_info *fi)
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fi->flags &= ~CEPH_F_ATEND;
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}
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static loff_t ceph_dir_llseek(struct file *file, loff_t offset, int origin)
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static loff_t ceph_dir_llseek(struct file *file, loff_t offset, int whence)
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{
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struct ceph_file_info *fi = file->private_data;
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struct inode *inode = file->f_mapping->host;
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@ -463,7 +463,7 @@ static loff_t ceph_dir_llseek(struct file *file, loff_t offset, int origin)
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mutex_lock(&inode->i_mutex);
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retval = -EINVAL;
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switch (origin) {
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switch (whence) {
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case SEEK_END:
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offset += inode->i_size + 2; /* FIXME */
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break;
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@ -797,7 +797,7 @@ static ssize_t ceph_aio_write(struct kiocb *iocb, const struct iovec *iov,
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/*
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* llseek. be sure to verify file size on SEEK_END.
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*/
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static loff_t ceph_llseek(struct file *file, loff_t offset, int origin)
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static loff_t ceph_llseek(struct file *file, loff_t offset, int whence)
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{
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struct inode *inode = file->f_mapping->host;
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int ret;
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@ -805,7 +805,7 @@ static loff_t ceph_llseek(struct file *file, loff_t offset, int origin)
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mutex_lock(&inode->i_mutex);
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__ceph_do_pending_vmtruncate(inode);
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if (origin == SEEK_END || origin == SEEK_DATA || origin == SEEK_HOLE) {
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if (whence == SEEK_END || whence == SEEK_DATA || whence == SEEK_HOLE) {
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ret = ceph_do_getattr(inode, CEPH_STAT_CAP_SIZE);
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if (ret < 0) {
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offset = ret;
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@ -813,7 +813,7 @@ static loff_t ceph_llseek(struct file *file, loff_t offset, int origin)
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}
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}
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switch (origin) {
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switch (whence) {
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case SEEK_END:
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offset += inode->i_size;
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break;
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@ -695,13 +695,13 @@ static ssize_t cifs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
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return written;
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}
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static loff_t cifs_llseek(struct file *file, loff_t offset, int origin)
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static loff_t cifs_llseek(struct file *file, loff_t offset, int whence)
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{
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/*
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* origin == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate
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* whence == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate
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* the cached file length
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*/
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if (origin != SEEK_SET && origin != SEEK_CUR) {
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if (whence != SEEK_SET && whence != SEEK_CUR) {
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int rc;
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struct inode *inode = file->f_path.dentry->d_inode;
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if (rc < 0)
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return (loff_t)rc;
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}
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return generic_file_llseek(file, offset, origin);
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return generic_file_llseek(file, offset, whence);
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}
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static int cifs_setlease(struct file *file, long arg, struct file_lock **lease)
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@ -1613,12 +1613,12 @@ static int configfs_readdir(struct file * filp, void * dirent, filldir_t filldir
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return 0;
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}
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static loff_t configfs_dir_lseek(struct file * file, loff_t offset, int origin)
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static loff_t configfs_dir_lseek(struct file *file, loff_t offset, int whence)
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{
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struct dentry * dentry = file->f_path.dentry;
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mutex_lock(&dentry->d_inode->i_mutex);
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switch (origin) {
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switch (whence) {
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case 1:
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offset += file->f_pos;
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case 0:
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@ -296,17 +296,17 @@ static inline loff_t ext3_get_htree_eof(struct file *filp)
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* NOTE: offsets obtained *before* ext3_set_inode_flag(dir, EXT3_INODE_INDEX)
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* will be invalid once the directory was converted into a dx directory
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*/
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loff_t ext3_dir_llseek(struct file *file, loff_t offset, int origin)
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loff_t ext3_dir_llseek(struct file *file, loff_t offset, int whence)
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{
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struct inode *inode = file->f_mapping->host;
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int dx_dir = is_dx_dir(inode);
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loff_t htree_max = ext3_get_htree_eof(file);
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if (likely(dx_dir))
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return generic_file_llseek_size(file, offset, origin,
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return generic_file_llseek_size(file, offset, whence,
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htree_max, htree_max);
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else
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return generic_file_llseek(file, offset, origin);
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return generic_file_llseek(file, offset, whence);
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}
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/*
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@ -333,17 +333,17 @@ static inline loff_t ext4_get_htree_eof(struct file *filp)
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*
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* For non-htree, ext4_llseek already chooses the proper max offset.
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*/
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loff_t ext4_dir_llseek(struct file *file, loff_t offset, int origin)
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loff_t ext4_dir_llseek(struct file *file, loff_t offset, int whence)
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{
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struct inode *inode = file->f_mapping->host;
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int dx_dir = is_dx_dir(inode);
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loff_t htree_max = ext4_get_htree_eof(file);
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if (likely(dx_dir))
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return generic_file_llseek_size(file, offset, origin,
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return generic_file_llseek_size(file, offset, whence,
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htree_max, htree_max);
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else
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return ext4_llseek(file, offset, origin);
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return ext4_llseek(file, offset, whence);
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}
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/*
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@ -303,7 +303,7 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
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* page cache has data or not.
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*/
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static int ext4_find_unwritten_pgoff(struct inode *inode,
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int origin,
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int whence,
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struct ext4_map_blocks *map,
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loff_t *offset)
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{
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nr_pages = pagevec_lookup(&pvec, inode->i_mapping, index,
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(pgoff_t)num);
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if (nr_pages == 0) {
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if (origin == SEEK_DATA)
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if (whence == SEEK_DATA)
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break;
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BUG_ON(origin != SEEK_HOLE);
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BUG_ON(whence != SEEK_HOLE);
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/*
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* If this is the first time to go into the loop and
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* offset is not beyond the end offset, it will be a
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* offset is smaller than the first page offset, it will be a
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* hole at this offset.
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*/
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if (lastoff == startoff && origin == SEEK_HOLE &&
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if (lastoff == startoff && whence == SEEK_HOLE &&
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lastoff < page_offset(pvec.pages[0])) {
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found = 1;
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break;
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* If the current offset is not beyond the end of given
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* range, it will be a hole.
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*/
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if (lastoff < endoff && origin == SEEK_HOLE &&
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if (lastoff < endoff && whence == SEEK_HOLE &&
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page->index > end) {
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found = 1;
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*offset = lastoff;
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@ -391,10 +391,10 @@ static int ext4_find_unwritten_pgoff(struct inode *inode,
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do {
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if (buffer_uptodate(bh) ||
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buffer_unwritten(bh)) {
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if (origin == SEEK_DATA)
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if (whence == SEEK_DATA)
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found = 1;
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} else {
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if (origin == SEEK_HOLE)
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if (whence == SEEK_HOLE)
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found = 1;
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}
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if (found) {
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@ -416,7 +416,7 @@ static int ext4_find_unwritten_pgoff(struct inode *inode,
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* The no. of pages is less than our desired, that would be a
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* hole in there.
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*/
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if (nr_pages < num && origin == SEEK_HOLE) {
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if (nr_pages < num && whence == SEEK_HOLE) {
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found = 1;
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*offset = lastoff;
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break;
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@ -609,7 +609,7 @@ static loff_t ext4_seek_hole(struct file *file, loff_t offset, loff_t maxsize)
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* by calling generic_file_llseek_size() with the appropriate maxbytes
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* value for each.
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*/
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loff_t ext4_llseek(struct file *file, loff_t offset, int origin)
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loff_t ext4_llseek(struct file *file, loff_t offset, int whence)
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{
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struct inode *inode = file->f_mapping->host;
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loff_t maxbytes;
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@ -619,11 +619,11 @@ loff_t ext4_llseek(struct file *file, loff_t offset, int origin)
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else
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maxbytes = inode->i_sb->s_maxbytes;
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switch (origin) {
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switch (whence) {
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case SEEK_SET:
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case SEEK_CUR:
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case SEEK_END:
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return generic_file_llseek_size(file, offset, origin,
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return generic_file_llseek_size(file, offset, whence,
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maxbytes, i_size_read(inode));
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case SEEK_DATA:
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return ext4_seek_data(file, offset, maxbytes);
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@ -1599,19 +1599,19 @@ static sector_t fuse_bmap(struct address_space *mapping, sector_t block)
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return err ? 0 : outarg.block;
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}
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static loff_t fuse_file_llseek(struct file *file, loff_t offset, int origin)
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static loff_t fuse_file_llseek(struct file *file, loff_t offset, int whence)
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{
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loff_t retval;
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struct inode *inode = file->f_path.dentry->d_inode;
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/* No i_mutex protection necessary for SEEK_CUR and SEEK_SET */
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if (origin == SEEK_CUR || origin == SEEK_SET)
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return generic_file_llseek(file, offset, origin);
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if (whence == SEEK_CUR || whence == SEEK_SET)
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return generic_file_llseek(file, offset, whence);
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mutex_lock(&inode->i_mutex);
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retval = fuse_update_attributes(inode, NULL, file, NULL);
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if (!retval)
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retval = generic_file_llseek(file, offset, origin);
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retval = generic_file_llseek(file, offset, whence);
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mutex_unlock(&inode->i_mutex);
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return retval;
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@ -44,7 +44,7 @@
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* gfs2_llseek - seek to a location in a file
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* @file: the file
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* @offset: the offset
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* @origin: Where to seek from (SEEK_SET, SEEK_CUR, or SEEK_END)
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* @whence: Where to seek from (SEEK_SET, SEEK_CUR, or SEEK_END)
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*
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* SEEK_END requires the glock for the file because it references the
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* file's size.
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@ -52,26 +52,26 @@
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* Returns: The new offset, or errno
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*/
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static loff_t gfs2_llseek(struct file *file, loff_t offset, int origin)
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static loff_t gfs2_llseek(struct file *file, loff_t offset, int whence)
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{
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struct gfs2_inode *ip = GFS2_I(file->f_mapping->host);
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struct gfs2_holder i_gh;
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loff_t error;
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switch (origin) {
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switch (whence) {
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case SEEK_END: /* These reference inode->i_size */
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case SEEK_DATA:
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case SEEK_HOLE:
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error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY,
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&i_gh);
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if (!error) {
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error = generic_file_llseek(file, offset, origin);
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error = generic_file_llseek(file, offset, whence);
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gfs2_glock_dq_uninit(&i_gh);
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}
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break;
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case SEEK_CUR:
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case SEEK_SET:
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error = generic_file_llseek(file, offset, origin);
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error = generic_file_llseek(file, offset, whence);
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break;
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default:
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error = -EINVAL;
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@ -81,11 +81,11 @@ int dcache_dir_close(struct inode *inode, struct file *file)
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return 0;
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}
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loff_t dcache_dir_lseek(struct file *file, loff_t offset, int origin)
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loff_t dcache_dir_lseek(struct file *file, loff_t offset, int whence)
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{
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struct dentry *dentry = file->f_path.dentry;
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mutex_lock(&dentry->d_inode->i_mutex);
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switch (origin) {
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switch (whence) {
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case 1:
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offset += file->f_pos;
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case 0:
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|
@ -871,7 +871,7 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
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return res;
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}
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static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int origin)
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static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int whence)
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{
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struct dentry *dentry = filp->f_path.dentry;
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struct inode *inode = dentry->d_inode;
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|
@ -880,10 +880,10 @@ static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int origin)
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dfprintk(FILE, "NFS: llseek dir(%s/%s, %lld, %d)\n",
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dentry->d_parent->d_name.name,
|
||||
dentry->d_name.name,
|
||||
offset, origin);
|
||||
offset, whence);
|
||||
|
||||
mutex_lock(&inode->i_mutex);
|
||||
switch (origin) {
|
||||
switch (whence) {
|
||||
case 1:
|
||||
offset += filp->f_pos;
|
||||
case 0:
|
||||
|
|
|
@ -119,18 +119,18 @@ static int nfs_revalidate_file_size(struct inode *inode, struct file *filp)
|
|||
return __nfs_revalidate_inode(server, inode);
|
||||
}
|
||||
|
||||
loff_t nfs_file_llseek(struct file *filp, loff_t offset, int origin)
|
||||
loff_t nfs_file_llseek(struct file *filp, loff_t offset, int whence)
|
||||
{
|
||||
dprintk("NFS: llseek file(%s/%s, %lld, %d)\n",
|
||||
filp->f_path.dentry->d_parent->d_name.name,
|
||||
filp->f_path.dentry->d_name.name,
|
||||
offset, origin);
|
||||
offset, whence);
|
||||
|
||||
/*
|
||||
* origin == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate
|
||||
* whence == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate
|
||||
* the cached file length
|
||||
*/
|
||||
if (origin != SEEK_SET && origin != SEEK_CUR) {
|
||||
if (whence != SEEK_SET && whence != SEEK_CUR) {
|
||||
struct inode *inode = filp->f_mapping->host;
|
||||
|
||||
int retval = nfs_revalidate_file_size(inode, filp);
|
||||
|
@ -138,7 +138,7 @@ loff_t nfs_file_llseek(struct file *filp, loff_t offset, int origin)
|
|||
return (loff_t)retval;
|
||||
}
|
||||
|
||||
return generic_file_llseek(filp, offset, origin);
|
||||
return generic_file_llseek(filp, offset, whence);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(nfs_file_llseek);
|
||||
|
||||
|
|
|
@ -832,7 +832,7 @@ int ocfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
|
|||
return ret;
|
||||
}
|
||||
|
||||
int ocfs2_seek_data_hole_offset(struct file *file, loff_t *offset, int origin)
|
||||
int ocfs2_seek_data_hole_offset(struct file *file, loff_t *offset, int whence)
|
||||
{
|
||||
struct inode *inode = file->f_mapping->host;
|
||||
int ret;
|
||||
|
@ -843,7 +843,7 @@ int ocfs2_seek_data_hole_offset(struct file *file, loff_t *offset, int origin)
|
|||
struct buffer_head *di_bh = NULL;
|
||||
struct ocfs2_extent_rec rec;
|
||||
|
||||
BUG_ON(origin != SEEK_DATA && origin != SEEK_HOLE);
|
||||
BUG_ON(whence != SEEK_DATA && whence != SEEK_HOLE);
|
||||
|
||||
ret = ocfs2_inode_lock(inode, &di_bh, 0);
|
||||
if (ret) {
|
||||
|
@ -859,7 +859,7 @@ int ocfs2_seek_data_hole_offset(struct file *file, loff_t *offset, int origin)
|
|||
}
|
||||
|
||||
if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) {
|
||||
if (origin == SEEK_HOLE)
|
||||
if (whence == SEEK_HOLE)
|
||||
*offset = inode->i_size;
|
||||
goto out_unlock;
|
||||
}
|
||||
|
@ -888,8 +888,8 @@ int ocfs2_seek_data_hole_offset(struct file *file, loff_t *offset, int origin)
|
|||
is_data = (rec.e_flags & OCFS2_EXT_UNWRITTEN) ? 0 : 1;
|
||||
}
|
||||
|
||||
if ((!is_data && origin == SEEK_HOLE) ||
|
||||
(is_data && origin == SEEK_DATA)) {
|
||||
if ((!is_data && whence == SEEK_HOLE) ||
|
||||
(is_data && whence == SEEK_DATA)) {
|
||||
if (extoff > *offset)
|
||||
*offset = extoff;
|
||||
goto out_unlock;
|
||||
|
@ -899,7 +899,7 @@ int ocfs2_seek_data_hole_offset(struct file *file, loff_t *offset, int origin)
|
|||
cpos += clen;
|
||||
}
|
||||
|
||||
if (origin == SEEK_HOLE) {
|
||||
if (whence == SEEK_HOLE) {
|
||||
extoff = cpos;
|
||||
extoff <<= cs_bits;
|
||||
extlen = clen;
|
||||
|
|
|
@ -2637,14 +2637,14 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb,
|
|||
}
|
||||
|
||||
/* Refer generic_file_llseek_unlocked() */
|
||||
static loff_t ocfs2_file_llseek(struct file *file, loff_t offset, int origin)
|
||||
static loff_t ocfs2_file_llseek(struct file *file, loff_t offset, int whence)
|
||||
{
|
||||
struct inode *inode = file->f_mapping->host;
|
||||
int ret = 0;
|
||||
|
||||
mutex_lock(&inode->i_mutex);
|
||||
|
||||
switch (origin) {
|
||||
switch (whence) {
|
||||
case SEEK_SET:
|
||||
break;
|
||||
case SEEK_END:
|
||||
|
@ -2659,7 +2659,7 @@ static loff_t ocfs2_file_llseek(struct file *file, loff_t offset, int origin)
|
|||
break;
|
||||
case SEEK_DATA:
|
||||
case SEEK_HOLE:
|
||||
ret = ocfs2_seek_data_hole_offset(file, &offset, origin);
|
||||
ret = ocfs2_seek_data_hole_offset(file, &offset, whence);
|
||||
if (ret)
|
||||
goto out;
|
||||
break;
|
||||
|
|
|
@ -151,13 +151,13 @@ static int pstore_file_open(struct inode *inode, struct file *file)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static loff_t pstore_file_llseek(struct file *file, loff_t off, int origin)
|
||||
static loff_t pstore_file_llseek(struct file *file, loff_t off, int whence)
|
||||
{
|
||||
struct seq_file *sf = file->private_data;
|
||||
|
||||
if (sf->op)
|
||||
return seq_lseek(file, off, origin);
|
||||
return default_llseek(file, off, origin);
|
||||
return seq_lseek(file, off, whence);
|
||||
return default_llseek(file, off, whence);
|
||||
}
|
||||
|
||||
static const struct file_operations pstore_file_operations = {
|
||||
|
|
|
@ -54,7 +54,7 @@ static loff_t lseek_execute(struct file *file, struct inode *inode,
|
|||
* generic_file_llseek_size - generic llseek implementation for regular files
|
||||
* @file: file structure to seek on
|
||||
* @offset: file offset to seek to
|
||||
* @origin: type of seek
|
||||
* @whence: type of seek
|
||||
* @size: max size of this file in file system
|
||||
* @eof: offset used for SEEK_END position
|
||||
*
|
||||
|
@ -67,12 +67,12 @@ static loff_t lseek_execute(struct file *file, struct inode *inode,
|
|||
* read/writes behave like SEEK_SET against seeks.
|
||||
*/
|
||||
loff_t
|
||||
generic_file_llseek_size(struct file *file, loff_t offset, int origin,
|
||||
generic_file_llseek_size(struct file *file, loff_t offset, int whence,
|
||||
loff_t maxsize, loff_t eof)
|
||||
{
|
||||
struct inode *inode = file->f_mapping->host;
|
||||
|
||||
switch (origin) {
|
||||
switch (whence) {
|
||||
case SEEK_END:
|
||||
offset += eof;
|
||||
break;
|
||||
|
@ -122,17 +122,17 @@ EXPORT_SYMBOL(generic_file_llseek_size);
|
|||
* generic_file_llseek - generic llseek implementation for regular files
|
||||
* @file: file structure to seek on
|
||||
* @offset: file offset to seek to
|
||||
* @origin: type of seek
|
||||
* @whence: type of seek
|
||||
*
|
||||
* This is a generic implemenation of ->llseek useable for all normal local
|
||||
* filesystems. It just updates the file offset to the value specified by
|
||||
* @offset and @origin under i_mutex.
|
||||
* @offset and @whence under i_mutex.
|
||||
*/
|
||||
loff_t generic_file_llseek(struct file *file, loff_t offset, int origin)
|
||||
loff_t generic_file_llseek(struct file *file, loff_t offset, int whence)
|
||||
{
|
||||
struct inode *inode = file->f_mapping->host;
|
||||
|
||||
return generic_file_llseek_size(file, offset, origin,
|
||||
return generic_file_llseek_size(file, offset, whence,
|
||||
inode->i_sb->s_maxbytes,
|
||||
i_size_read(inode));
|
||||
}
|
||||
|
@ -142,32 +142,32 @@ EXPORT_SYMBOL(generic_file_llseek);
|
|||
* noop_llseek - No Operation Performed llseek implementation
|
||||
* @file: file structure to seek on
|
||||
* @offset: file offset to seek to
|
||||
* @origin: type of seek
|
||||
* @whence: type of seek
|
||||
*
|
||||
* This is an implementation of ->llseek useable for the rare special case when
|
||||
* userspace expects the seek to succeed but the (device) file is actually not
|
||||
* able to perform the seek. In this case you use noop_llseek() instead of
|
||||
* falling back to the default implementation of ->llseek.
|
||||
*/
|
||||
loff_t noop_llseek(struct file *file, loff_t offset, int origin)
|
||||
loff_t noop_llseek(struct file *file, loff_t offset, int whence)
|
||||
{
|
||||
return file->f_pos;
|
||||
}
|
||||
EXPORT_SYMBOL(noop_llseek);
|
||||
|
||||
loff_t no_llseek(struct file *file, loff_t offset, int origin)
|
||||
loff_t no_llseek(struct file *file, loff_t offset, int whence)
|
||||
{
|
||||
return -ESPIPE;
|
||||
}
|
||||
EXPORT_SYMBOL(no_llseek);
|
||||
|
||||
loff_t default_llseek(struct file *file, loff_t offset, int origin)
|
||||
loff_t default_llseek(struct file *file, loff_t offset, int whence)
|
||||
{
|
||||
struct inode *inode = file->f_path.dentry->d_inode;
|
||||
loff_t retval;
|
||||
|
||||
mutex_lock(&inode->i_mutex);
|
||||
switch (origin) {
|
||||
switch (whence) {
|
||||
case SEEK_END:
|
||||
offset += i_size_read(inode);
|
||||
break;
|
||||
|
@ -216,7 +216,7 @@ loff_t default_llseek(struct file *file, loff_t offset, int origin)
|
|||
}
|
||||
EXPORT_SYMBOL(default_llseek);
|
||||
|
||||
loff_t vfs_llseek(struct file *file, loff_t offset, int origin)
|
||||
loff_t vfs_llseek(struct file *file, loff_t offset, int whence)
|
||||
{
|
||||
loff_t (*fn)(struct file *, loff_t, int);
|
||||
|
||||
|
@ -225,11 +225,11 @@ loff_t vfs_llseek(struct file *file, loff_t offset, int origin)
|
|||
if (file->f_op && file->f_op->llseek)
|
||||
fn = file->f_op->llseek;
|
||||
}
|
||||
return fn(file, offset, origin);
|
||||
return fn(file, offset, whence);
|
||||
}
|
||||
EXPORT_SYMBOL(vfs_llseek);
|
||||
|
||||
SYSCALL_DEFINE3(lseek, unsigned int, fd, off_t, offset, unsigned int, origin)
|
||||
SYSCALL_DEFINE3(lseek, unsigned int, fd, off_t, offset, unsigned int, whence)
|
||||
{
|
||||
off_t retval;
|
||||
struct fd f = fdget(fd);
|
||||
|
@ -237,8 +237,8 @@ SYSCALL_DEFINE3(lseek, unsigned int, fd, off_t, offset, unsigned int, origin)
|
|||
return -EBADF;
|
||||
|
||||
retval = -EINVAL;
|
||||
if (origin <= SEEK_MAX) {
|
||||
loff_t res = vfs_llseek(f.file, offset, origin);
|
||||
if (whence <= SEEK_MAX) {
|
||||
loff_t res = vfs_llseek(f.file, offset, whence);
|
||||
retval = res;
|
||||
if (res != (loff_t)retval)
|
||||
retval = -EOVERFLOW; /* LFS: should only happen on 32 bit platforms */
|
||||
|
@ -250,7 +250,7 @@ SYSCALL_DEFINE3(lseek, unsigned int, fd, off_t, offset, unsigned int, origin)
|
|||
#ifdef __ARCH_WANT_SYS_LLSEEK
|
||||
SYSCALL_DEFINE5(llseek, unsigned int, fd, unsigned long, offset_high,
|
||||
unsigned long, offset_low, loff_t __user *, result,
|
||||
unsigned int, origin)
|
||||
unsigned int, whence)
|
||||
{
|
||||
int retval;
|
||||
struct fd f = fdget(fd);
|
||||
|
@ -260,11 +260,11 @@ SYSCALL_DEFINE5(llseek, unsigned int, fd, unsigned long, offset_high,
|
|||
return -EBADF;
|
||||
|
||||
retval = -EINVAL;
|
||||
if (origin > SEEK_MAX)
|
||||
if (whence > SEEK_MAX)
|
||||
goto out_putf;
|
||||
|
||||
offset = vfs_llseek(f.file, ((loff_t) offset_high << 32) | offset_low,
|
||||
origin);
|
||||
whence);
|
||||
|
||||
retval = (int)offset;
|
||||
if (offset >= 0) {
|
||||
|
|
|
@ -300,14 +300,14 @@ EXPORT_SYMBOL(seq_read);
|
|||
*
|
||||
* Ready-made ->f_op->llseek()
|
||||
*/
|
||||
loff_t seq_lseek(struct file *file, loff_t offset, int origin)
|
||||
loff_t seq_lseek(struct file *file, loff_t offset, int whence)
|
||||
{
|
||||
struct seq_file *m = file->private_data;
|
||||
loff_t retval = -EINVAL;
|
||||
|
||||
mutex_lock(&m->lock);
|
||||
m->version = file->f_version;
|
||||
switch (origin) {
|
||||
switch (whence) {
|
||||
case 1:
|
||||
offset += file->f_pos;
|
||||
case 0:
|
||||
|
|
|
@ -453,11 +453,11 @@ static int ubifs_readdir(struct file *file, void *dirent, filldir_t filldir)
|
|||
}
|
||||
|
||||
/* If a directory is seeked, we have to free saved readdir() state */
|
||||
static loff_t ubifs_dir_llseek(struct file *file, loff_t offset, int origin)
|
||||
static loff_t ubifs_dir_llseek(struct file *file, loff_t offset, int whence)
|
||||
{
|
||||
kfree(file->private_data);
|
||||
file->private_data = NULL;
|
||||
return generic_file_llseek(file, offset, origin);
|
||||
return generic_file_llseek(file, offset, whence);
|
||||
}
|
||||
|
||||
/* Free saved readdir() state when the directory is closed */
|
||||
|
|
|
@ -2286,9 +2286,9 @@ extern ino_t find_inode_number(struct dentry *, struct qstr *);
|
|||
#include <linux/err.h>
|
||||
|
||||
/* needed for stackable file system support */
|
||||
extern loff_t default_llseek(struct file *file, loff_t offset, int origin);
|
||||
extern loff_t default_llseek(struct file *file, loff_t offset, int whence);
|
||||
|
||||
extern loff_t vfs_llseek(struct file *file, loff_t offset, int origin);
|
||||
extern loff_t vfs_llseek(struct file *file, loff_t offset, int whence);
|
||||
|
||||
extern int inode_init_always(struct super_block *, struct inode *);
|
||||
extern void inode_init_once(struct inode *);
|
||||
|
@ -2396,11 +2396,11 @@ extern long do_splice_direct(struct file *in, loff_t *ppos, struct file *out,
|
|||
|
||||
extern void
|
||||
file_ra_state_init(struct file_ra_state *ra, struct address_space *mapping);
|
||||
extern loff_t noop_llseek(struct file *file, loff_t offset, int origin);
|
||||
extern loff_t no_llseek(struct file *file, loff_t offset, int origin);
|
||||
extern loff_t generic_file_llseek(struct file *file, loff_t offset, int origin);
|
||||
extern loff_t noop_llseek(struct file *file, loff_t offset, int whence);
|
||||
extern loff_t no_llseek(struct file *file, loff_t offset, int whence);
|
||||
extern loff_t generic_file_llseek(struct file *file, loff_t offset, int whence);
|
||||
extern loff_t generic_file_llseek_size(struct file *file, loff_t offset,
|
||||
int origin, loff_t maxsize, loff_t eof);
|
||||
int whence, loff_t maxsize, loff_t eof);
|
||||
extern int generic_file_open(struct inode * inode, struct file * filp);
|
||||
extern int nonseekable_open(struct inode * inode, struct file * filp);
|
||||
|
||||
|
|
|
@ -394,7 +394,7 @@ ssize_t ftrace_filter_write(struct file *file, const char __user *ubuf,
|
|||
size_t cnt, loff_t *ppos);
|
||||
ssize_t ftrace_notrace_write(struct file *file, const char __user *ubuf,
|
||||
size_t cnt, loff_t *ppos);
|
||||
loff_t ftrace_regex_lseek(struct file *file, loff_t offset, int origin);
|
||||
loff_t ftrace_regex_lseek(struct file *file, loff_t offset, int whence);
|
||||
int ftrace_regex_release(struct inode *inode, struct file *file);
|
||||
|
||||
void __init
|
||||
|
@ -559,7 +559,7 @@ static inline ssize_t ftrace_filter_write(struct file *file, const char __user *
|
|||
size_t cnt, loff_t *ppos) { return -ENODEV; }
|
||||
static inline ssize_t ftrace_notrace_write(struct file *file, const char __user *ubuf,
|
||||
size_t cnt, loff_t *ppos) { return -ENODEV; }
|
||||
static inline loff_t ftrace_regex_lseek(struct file *file, loff_t offset, int origin)
|
||||
static inline loff_t ftrace_regex_lseek(struct file *file, loff_t offset, int whence)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
|
|
@ -560,10 +560,10 @@ asmlinkage long sys_utime(char __user *filename,
|
|||
asmlinkage long sys_utimes(char __user *filename,
|
||||
struct timeval __user *utimes);
|
||||
asmlinkage long sys_lseek(unsigned int fd, off_t offset,
|
||||
unsigned int origin);
|
||||
unsigned int whence);
|
||||
asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
|
||||
unsigned long offset_low, loff_t __user *result,
|
||||
unsigned int origin);
|
||||
unsigned int whence);
|
||||
asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
|
||||
asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
|
||||
asmlinkage long sys_readv(unsigned long fd,
|
||||
|
|
|
@ -2675,12 +2675,12 @@ ftrace_notrace_open(struct inode *inode, struct file *file)
|
|||
}
|
||||
|
||||
loff_t
|
||||
ftrace_regex_lseek(struct file *file, loff_t offset, int origin)
|
||||
ftrace_regex_lseek(struct file *file, loff_t offset, int whence)
|
||||
{
|
||||
loff_t ret;
|
||||
|
||||
if (file->f_mode & FMODE_READ)
|
||||
ret = seq_lseek(file, offset, origin);
|
||||
ret = seq_lseek(file, offset, whence);
|
||||
else
|
||||
file->f_pos = ret = 1;
|
||||
|
||||
|
|
20
mm/shmem.c
20
mm/shmem.c
|
@ -1719,7 +1719,7 @@ static ssize_t shmem_file_splice_read(struct file *in, loff_t *ppos,
|
|||
* llseek SEEK_DATA or SEEK_HOLE through the radix_tree.
|
||||
*/
|
||||
static pgoff_t shmem_seek_hole_data(struct address_space *mapping,
|
||||
pgoff_t index, pgoff_t end, int origin)
|
||||
pgoff_t index, pgoff_t end, int whence)
|
||||
{
|
||||
struct page *page;
|
||||
struct pagevec pvec;
|
||||
|
@ -1733,13 +1733,13 @@ static pgoff_t shmem_seek_hole_data(struct address_space *mapping,
|
|||
pvec.nr = shmem_find_get_pages_and_swap(mapping, index,
|
||||
pvec.nr, pvec.pages, indices);
|
||||
if (!pvec.nr) {
|
||||
if (origin == SEEK_DATA)
|
||||
if (whence == SEEK_DATA)
|
||||
index = end;
|
||||
break;
|
||||
}
|
||||
for (i = 0; i < pvec.nr; i++, index++) {
|
||||
if (index < indices[i]) {
|
||||
if (origin == SEEK_HOLE) {
|
||||
if (whence == SEEK_HOLE) {
|
||||
done = true;
|
||||
break;
|
||||
}
|
||||
|
@ -1751,8 +1751,8 @@ static pgoff_t shmem_seek_hole_data(struct address_space *mapping,
|
|||
page = NULL;
|
||||
}
|
||||
if (index >= end ||
|
||||
(page && origin == SEEK_DATA) ||
|
||||
(!page && origin == SEEK_HOLE)) {
|
||||
(page && whence == SEEK_DATA) ||
|
||||
(!page && whence == SEEK_HOLE)) {
|
||||
done = true;
|
||||
break;
|
||||
}
|
||||
|
@ -1765,15 +1765,15 @@ static pgoff_t shmem_seek_hole_data(struct address_space *mapping,
|
|||
return index;
|
||||
}
|
||||
|
||||
static loff_t shmem_file_llseek(struct file *file, loff_t offset, int origin)
|
||||
static loff_t shmem_file_llseek(struct file *file, loff_t offset, int whence)
|
||||
{
|
||||
struct address_space *mapping = file->f_mapping;
|
||||
struct inode *inode = mapping->host;
|
||||
pgoff_t start, end;
|
||||
loff_t new_offset;
|
||||
|
||||
if (origin != SEEK_DATA && origin != SEEK_HOLE)
|
||||
return generic_file_llseek_size(file, offset, origin,
|
||||
if (whence != SEEK_DATA && whence != SEEK_HOLE)
|
||||
return generic_file_llseek_size(file, offset, whence,
|
||||
MAX_LFS_FILESIZE, i_size_read(inode));
|
||||
mutex_lock(&inode->i_mutex);
|
||||
/* We're holding i_mutex so we can access i_size directly */
|
||||
|
@ -1785,12 +1785,12 @@ static loff_t shmem_file_llseek(struct file *file, loff_t offset, int origin)
|
|||
else {
|
||||
start = offset >> PAGE_CACHE_SHIFT;
|
||||
end = (inode->i_size + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
|
||||
new_offset = shmem_seek_hole_data(mapping, start, end, origin);
|
||||
new_offset = shmem_seek_hole_data(mapping, start, end, whence);
|
||||
new_offset <<= PAGE_CACHE_SHIFT;
|
||||
if (new_offset > offset) {
|
||||
if (new_offset < inode->i_size)
|
||||
offset = new_offset;
|
||||
else if (origin == SEEK_DATA)
|
||||
else if (whence == SEEK_DATA)
|
||||
offset = -ENXIO;
|
||||
else
|
||||
offset = inode->i_size;
|
||||
|
|
Loading…
Reference in New Issue
Block a user