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cifs: fix offset handling in cifs_iovec_write

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In the recent update of the cifs_iovec_write code to use async writes,
the handling of the file position was broken. That patch added a local
"offset" variable to handle the offset, and then only updated the
original "*poffset" before exiting.

Unfortunately, it copied off the original offset from the beginning,
instead of doing so after generic_write_checks had been called. Fix
this by moving the initialization of "offset" after that in the
function.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Jeff Layton 2012-04-13 17:16:59 -04:00 committed by Steve French
parent c6f5c93098
commit 3af9d8f227
1 changed files with 2 additions and 1 deletions
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fs/cifs/file.c
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@ -2178,7 +2178,7 @@ cifs_iovec_write(struct file *file, const struct iovec *iov,
unsigned long nr_pages, i;
size_t copied, len, cur_len;
ssize_t total_written = 0;
loff_t offset = *poffset;
loff_t offset;
struct iov_iter it;
struct cifsFileInfo *open_file;
struct cifs_tcon *tcon;
@ -2200,6 +2200,7 @@ cifs_iovec_write(struct file *file, const struct iovec *iov,
cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
open_file = file->private_data;
tcon = tlink_tcon(open_file->tlink);
offset = *poffset;
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RWPIDFORWARD)
pid = open_file->pid;