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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-18 02:51:32 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-18 02:51:32 +0300 |
commit | 1ca80a0a3e37d847f3cd6120ca5eb35b39a9a152 (patch) | |
tree | 142862af82d881d1b54a949f3887f692c18bbbc9 /fs/gfs2/inode.c | |
parent | d77bed0d4c61cb0258851367a36b358dbeb7abcc (diff) | |
parent | 73b462d2808d7cbca4d7886cf6aaed850640e6cd (diff) | |
download | linux-1ca80a0a3e37d847f3cd6120ca5eb35b39a9a152.tar.xz |
Merge tag 'gfs2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull GFS2 updates from Bob Peterson:
"We only have six patches ready for this merge window:
- Arnd Bergmann contributed a patch that fixes an uninitialized
variable warning.
- The second patch avoids a kernel panic due to referencing an iopen
glock that may not be held, in an error path.
- The third patch fixes a rounding error that caused xfs_tests direct
IO write "fsx" tests to fail on GFS2.
- The fourth patch tidies up the code path when glocks are being
reused to recreate a dinode that was recently deleted.
- The fifth reverts an ages-old patch that should no longer be
needed, and which interfered with the transition of dinodes from
unlinked to free.
- And lastly, a patch to eliminate a function parameter that's not
needed"
* tag 'gfs2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
GFS2: Eliminate parameter non_block on gfs2_inode_lookup
GFS2: Don't filter out I_FREEING inodes anymore
GFS2: Prevent delete work from occurring on glocks used for create
GFS2: Fix direct IO write rounding error
gfs2: avoid uninitialized variable warning
GFS2: Check if iopen is held when deleting inode
Diffstat (limited to 'fs/gfs2/inode.c')
-rw-r--r-- | fs/gfs2/inode.c | 71 |
1 files changed, 12 insertions, 59 deletions
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index 352f958769e1..bb30f9a72c65 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -37,61 +37,9 @@ #include "super.h" #include "glops.h" -struct gfs2_skip_data { - u64 no_addr; - int skipped; - int non_block; -}; - -static int iget_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) { - if (data->non_block && - inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE)) { - data->skipped = 1; - return 0; - } - return 1; - } - return 0; -} - -static int iget_set(struct inode *inode, void *opaque) -{ - struct gfs2_inode *ip = GFS2_I(inode); - struct gfs2_skip_data *data = opaque; - - if (data->skipped) - return -ENOENT; - inode->i_ino = (unsigned long)(data->no_addr); - ip->i_no_addr = data->no_addr; - return 0; -} - -struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr, int non_block) +struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr) { - unsigned long hash = (unsigned long)no_addr; - struct gfs2_skip_data data; - - data.no_addr = no_addr; - data.skipped = 0; - data.non_block = non_block; - return ilookup5(sb, hash, iget_test, &data); -} - -static struct inode *gfs2_iget(struct super_block *sb, u64 no_addr, - int non_block) -{ - struct gfs2_skip_data data; - unsigned long hash = (unsigned long)no_addr; - - data.no_addr = no_addr; - data.skipped = 0; - data.non_block = non_block; - return iget5_locked(sb, hash, iget_test, iget_set, &data); + return ilookup(sb, (unsigned long)no_addr); } /** @@ -132,21 +80,21 @@ static void gfs2_set_iop(struct inode *inode) * @sb: The super block * @no_addr: The inode number * @type: The type of the inode - * non_block: Can we block on inodes that are being freed? * * Returns: A VFS inode, or an error */ struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned int type, - u64 no_addr, u64 no_formal_ino, int non_block) + u64 no_addr, u64 no_formal_ino) { struct inode *inode; struct gfs2_inode *ip; struct gfs2_glock *io_gl = NULL; int error; - inode = gfs2_iget(sb, no_addr, non_block); + inode = iget_locked(sb, (unsigned long)no_addr); ip = GFS2_I(inode); + ip->i_no_addr = no_addr; if (!inode) return ERR_PTR(-ENOMEM); @@ -221,7 +169,7 @@ struct inode *gfs2_lookup_by_inum(struct gfs2_sbd *sdp, u64 no_addr, if (error) goto fail; - inode = gfs2_inode_lookup(sb, DT_UNKNOWN, no_addr, 0, 1); + inode = gfs2_inode_lookup(sb, DT_UNKNOWN, no_addr, 0); if (IS_ERR(inode)) goto fail; @@ -592,7 +540,7 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry, struct inode *inode = NULL; struct gfs2_inode *dip = GFS2_I(dir), *ip; struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode); - struct gfs2_glock *io_gl; + struct gfs2_glock *io_gl = NULL; int error, free_vfs_inode = 1; u32 aflags = 0; unsigned blocks = 1; @@ -729,6 +677,8 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry, if (error) goto fail_gunlock2; + BUG_ON(test_and_set_bit(GLF_INODE_CREATING, &io_gl->gl_flags)); + error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED, GL_EXACT, &ip->i_iopen_gh); if (error) goto fail_gunlock2; @@ -771,12 +721,15 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry, } gfs2_glock_dq_uninit(ghs); gfs2_glock_dq_uninit(ghs + 1); + clear_bit(GLF_INODE_CREATING, &io_gl->gl_flags); return error; fail_gunlock3: gfs2_glock_dq_uninit(&ip->i_iopen_gh); gfs2_glock_put(io_gl); fail_gunlock2: + if (io_gl) + clear_bit(GLF_INODE_CREATING, &io_gl->gl_flags); gfs2_glock_dq_uninit(ghs + 1); fail_free_inode: if (ip->i_gl) |