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Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes

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* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
  GFS2: rename causes kernel Oops
  GFS2: BUG in gfs2_adjust_quota
  GFS2: Fix kernel NULL pointer dereference by dlm_astd
  GFS2: recovery stuck on transaction lock
  GFS2: O_TRUNC not working on stuffed files across cluster
This commit is contained in:
Linus Torvalds 2010-07-16 08:23:10 -07:00
commit 79140bc486
5 changed files with 23 additions and 10 deletions
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1
fs/gfs2/bmap.c
View File

@ -1041,6 +1041,7 @@ static int trunc_start(struct gfs2_inode *ip, u64 size)
if (gfs2_is_stuffed(ip)) {
u64 dsize = size + sizeof(struct gfs2_inode);
ip->i_disksize = size;
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);

2
fs/gfs2/dir.c
View File

@ -392,7 +392,7 @@ static int gfs2_dirent_find_space(const struct gfs2_dirent *dent,
unsigned totlen = be16_to_cpu(dent->de_rec_len);
if (gfs2_dirent_sentinel(dent))
actual = GFS2_DIRENT_SIZE(0);
actual = 0;
if (totlen - actual >= required)
return 1;
return 0;

10
fs/gfs2/glock.c
View File

@ -706,8 +706,18 @@ static void glock_work_func(struct work_struct *work)
{
unsigned long delay = 0;
struct gfs2_glock *gl = container_of(work, struct gfs2_glock, gl_work.work);
struct gfs2_holder *gh;
int drop_ref = 0;
if (unlikely(test_bit(GLF_FROZEN, &gl->gl_flags))) {
spin_lock(&gl->gl_spin);
gh = find_first_waiter(gl);
if (gh && (gh->gh_flags & LM_FLAG_NOEXP) &&
test_and_clear_bit(GLF_FROZEN, &gl->gl_flags))
set_bit(GLF_REPLY_PENDING, &gl->gl_flags);
spin_unlock(&gl->gl_spin);
}
if (test_and_clear_bit(GLF_REPLY_PENDING, &gl->gl_flags)) {
finish_xmote(gl, gl->gl_reply);
drop_ref = 1;

12
fs/gfs2/inode.c
View File

@ -169,7 +169,7 @@ struct inode *gfs2_inode_lookup(struct super_block *sb,
{
struct inode *inode;
struct gfs2_inode *ip;
struct gfs2_glock *io_gl;
struct gfs2_glock *io_gl = NULL;
int error;
inode = gfs2_iget(sb, no_addr);
@ -198,6 +198,7 @@ struct inode *gfs2_inode_lookup(struct super_block *sb,
ip->i_iopen_gh.gh_gl->gl_object = ip;
gfs2_glock_put(io_gl);
io_gl = NULL;
if ((type == DT_UNKNOWN) && (no_formal_ino == 0))
goto gfs2_nfsbypass;
@ -228,7 +229,8 @@ struct inode *gfs2_inode_lookup(struct super_block *sb,
fail_glock:
gfs2_glock_dq(&ip->i_iopen_gh);
fail_iopen:
gfs2_glock_put(io_gl);
if (io_gl)
gfs2_glock_put(io_gl);
fail_put:
if (inode->i_state & I_NEW)
ip->i_gl->gl_object = NULL;
@ -256,7 +258,7 @@ void gfs2_process_unlinked_inode(struct super_block *sb, u64 no_addr)
{
struct gfs2_sbd *sdp;
struct gfs2_inode *ip;
struct gfs2_glock *io_gl;
struct gfs2_glock *io_gl = NULL;
int error;
struct gfs2_holder gh;
struct inode *inode;
@ -293,6 +295,7 @@ void gfs2_process_unlinked_inode(struct super_block *sb, u64 no_addr)
ip->i_iopen_gh.gh_gl->gl_object = ip;
gfs2_glock_put(io_gl);
io_gl = NULL;
inode->i_mode = DT2IF(DT_UNKNOWN);
@ -319,7 +322,8 @@ void gfs2_process_unlinked_inode(struct super_block *sb, u64 no_addr)
fail_glock:
gfs2_glock_dq(&ip->i_iopen_gh);
fail_iopen:
gfs2_glock_put(io_gl);
if (io_gl)
gfs2_glock_put(io_gl);
fail_put:
ip->i_gl->gl_object = NULL;
gfs2_glock_put(ip->i_gl);

8
fs/gfs2/quota.c
View File

@ -694,10 +694,8 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
if (!buffer_mapped(bh))
goto unlock_out;
/* If it's a newly allocated disk block for quota, zero it */
if (buffer_new(bh)) {
memset(bh->b_data, 0, bh->b_size);
set_buffer_uptodate(bh);
}
if (buffer_new(bh))
zero_user(page, pos - blocksize, bh->b_size);
}
if (PageUptodate(page))
@ -723,7 +721,7 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
/* If quota straddles page boundary, we need to update the rest of the
* quota at the beginning of the next page */
if (offset != 0) { /* first page, offset is closer to PAGE_CACHE_SIZE */
if ((offset + sizeof(struct gfs2_quota)) > PAGE_CACHE_SIZE) {
ptr = ptr + nbytes;
nbytes = sizeof(struct gfs2_quota) - nbytes;
offset = 0;