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author | Andreas Gruenbacher <agruenba@redhat.com> | 2019-05-17 00:46:30 +0300 |
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committer | Andreas Gruenbacher <agruenba@redhat.com> | 2019-06-27 21:53:45 +0300 |
commit | 2a27b755ed244527df845f07f4dd83988a90f2e4 (patch) | |
tree | 514a0b34f5509029336314c82f6be5ad07f7ee35 /fs/gfs2/ops_fstype.c | |
parent | 4b972a01a7da614b4796475f933094751a295a2f (diff) | |
download | linux-2a27b755ed244527df845f07f4dd83988a90f2e4.tar.xz |
gfs2: Clean up freeing struct gfs2_sbd
Add a free_sbd function for freeing a struct gfs2_sbd. Use that for
freeing a super-block descriptor, either directly or via kobject_put.
Free sd_lkstats inside the kobject release function: that way,
gfs2_put_super will no longer leak sd_lkstats.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'fs/gfs2/ops_fstype.c')
-rw-r--r-- | fs/gfs2/ops_fstype.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index 08823bb3b2d0..8d614f599065 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -61,6 +61,13 @@ static void gfs2_tune_init(struct gfs2_tune *gt) gt->gt_complain_secs = 10; } +void free_sbd(struct gfs2_sbd *sdp) +{ + if (sdp->sd_lkstats) + free_percpu(sdp->sd_lkstats); + kfree(sdp); +} + static struct gfs2_sbd *init_sbd(struct super_block *sb) { struct gfs2_sbd *sdp; @@ -72,10 +79,8 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb) sdp->sd_vfs = sb; sdp->sd_lkstats = alloc_percpu(struct gfs2_pcpu_lkstats); - if (!sdp->sd_lkstats) { - kfree(sdp); - return NULL; - } + if (!sdp->sd_lkstats) + goto fail; sb->s_fs_info = sdp; set_bit(SDF_NOJOURNALID, &sdp->sd_flags); @@ -134,8 +139,11 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb) mutex_init(&sdp->sd_freeze_mutex); return sdp; -} +fail: + free_sbd(sdp); + return NULL; +} /** * gfs2_check_sb - Check superblock @@ -1086,8 +1094,7 @@ static int fill_super(struct super_block *sb, struct gfs2_args *args, int silent if (error) { /* In this case, we haven't initialized sysfs, so we have to manually free the sdp. */ - free_percpu(sdp->sd_lkstats); - kfree(sdp); + free_sbd(sdp); sb->s_fs_info = NULL; return error; } @@ -1190,7 +1197,6 @@ fail_lm: gfs2_lm_unmount(sdp); fail_debug: gfs2_delete_debugfs_file(sdp); - free_percpu(sdp->sd_lkstats); /* gfs2_sys_fs_del must be the last thing we do, since it causes * sysfs to call function gfs2_sbd_release, which frees sdp. */ gfs2_sys_fs_del(sdp); @@ -1370,7 +1376,6 @@ static void gfs2_kill_sb(struct super_block *sb) sdp->sd_root_dir = NULL; sdp->sd_master_dir = NULL; shrink_dcache_sb(sb); - free_percpu(sdp->sd_lkstats); kill_block_super(sb); } |