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| author | Bob Peterson <rpeterso@redhat.com> | 2008-04-29 12:35:48 -0500 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2008-05-12 08:54:53 +0100 |
| commit | 091806edd458486af13ad83c9802f5b8b54d6d19 (patch) | |
| tree | cf10d6aaf2e6bf0ed5b0ad94306623a2fc3fdb56 /fs/gfs2/inode.c | |
| parent | 492c2e476eac010962850006c49df326919b284c (diff) | |
| download | linux-091806edd458486af13ad83c9802f5b8b54d6d19.tar.gz linux-091806edd458486af13ad83c9802f5b8b54d6d19.tar.bz2 linux-091806edd458486af13ad83c9802f5b8b54d6d19.zip | |
[GFS2] filesystem consistency error from do_strip
This patch fixes a GFS2 filesystem consistency error reported from
function do_strip. The problem was caused by a timing window
that allowed two vfs inodes to be created in memory that point
to the same file. The problem is fixed by making the vfs's
iget_test, iget_set mechanism check and set a new bit in the
in-core gfs2_inode structure while the vfs inode spin_lock is held.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/inode.c')
| -rw-r--r-- | fs/gfs2/inode.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index 3a9ef526c308..09453d057e41 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -47,8 +47,7 @@ static int iget_test(struct inode *inode, void *opaque) struct gfs2_inode *ip = GFS2_I(inode); u64 *no_addr = opaque; - if (ip->i_no_addr == *no_addr && - inode->i_private != NULL) + if (ip->i_no_addr == *no_addr && test_bit(GIF_USER, &ip->i_flags)) return 1; return 0; @@ -61,6 +60,7 @@ static int iget_set(struct inode *inode, void *opaque) inode->i_ino = (unsigned long)*no_addr; ip->i_no_addr = *no_addr; + set_bit(GIF_USER, &ip->i_flags); return 0; } @@ -86,7 +86,7 @@ static int iget_skip_test(struct inode *inode, void *opaque) struct gfs2_inode *ip = GFS2_I(inode); struct gfs2_skip_data *data = opaque; - if (ip->i_no_addr == data->no_addr && inode->i_private != NULL){ + if (ip->i_no_addr == data->no_addr && test_bit(GIF_USER, &ip->i_flags)){ if (inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE)){ data->skipped = 1; return 0; @@ -105,6 +105,7 @@ static int iget_skip_set(struct inode *inode, void *opaque) return 1; inode->i_ino = (unsigned long)(data->no_addr); ip->i_no_addr = data->no_addr; + set_bit(GIF_USER, &ip->i_flags); return 0; } @@ -166,7 +167,7 @@ void gfs2_set_iop(struct inode *inode) * Returns: A VFS inode, or an error */ -struct inode *gfs2_inode_lookup(struct super_block *sb, +struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned int type, u64 no_addr, u64 no_formal_ino, int skip_freeing) @@ -187,7 +188,6 @@ struct inode *gfs2_inode_lookup(struct super_block *sb, if (inode->i_state & I_NEW) { struct gfs2_sbd *sdp = GFS2_SB(inode); - inode->i_private = ip; ip->i_no_formal_ino = no_formal_ino; error = gfs2_glock_get(sdp, no_addr, &gfs2_inode_glops, CREATE, &ip->i_gl); |