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authorLinus Torvalds <torvalds@linux-foundation.org>2021-05-04 18:03:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-05-04 18:03:38 -0700
commitd0195c7d7af6a456c37f4b4b2df5528f10714482 (patch)
tree9b93122a6011814b63fd5a66d2a0a240388ad5e5 /fs/f2fs/namei.c
parentMerge tag 'dmaengine-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine (diff)
parentf2fs: drop inplace IO if fs status is abnormal (diff)
downloadlinux-dev-d0195c7d7af6a456c37f4b4b2df5528f10714482.tar.xz
linux-dev-d0195c7d7af6a456c37f4b4b2df5528f10714482.zip
Merge tag 'f2fs-for-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim: "In this round, we added a new mount option, "checkpoint_merge", which introduces a kernel thread dealing with the f2fs checkpoints. Once we start to manage the IO priority along with blk-cgroup, the checkpoint operation can be processed in a lower priority under the process context. Since the checkpoint holds all the filesystem operations, we give a higher priority to the checkpoint thread all the time. Enhancements: - introduce gc_merge mount option to introduce a checkpoint thread - improve to run discard thread efficiently - allow modular compression algorithms - expose # of overprivision segments to sysfs - expose runtime compression stat to sysfs Bug fixes: - fix OOB memory access by the node id lookup - avoid touching checkpointed data in the checkpoint-disabled mode - fix the resizing flow to avoid kernel panic and race conditions - fix block allocation issues on pinned files - address some swapfile issues - fix hugtask problem and kernel panic during atomic write operations - don't start checkpoint thread in RO And, we've cleaned up some kernel coding style and build warnings. In addition, we fixed some minor race conditions and error handling routines" * tag 'f2fs-for-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (48 commits) f2fs: drop inplace IO if fs status is abnormal f2fs: compress: remove unneed check condition f2fs: clean up left deprecated IO trace codes f2fs: avoid using native allocate_segment_by_default() f2fs: remove unnecessary struct declaration f2fs: fix to avoid NULL pointer dereference f2fs: avoid duplicated codes for cleanup f2fs: document: add description about compressed space handling f2fs: clean up build warnings f2fs: fix the periodic wakeups of discard thread f2fs: fix to avoid accessing invalid fio in f2fs_allocate_data_block() f2fs: fix to avoid GC/mmap race with f2fs_truncate() f2fs: set checkpoint_merge by default f2fs: Fix a hungtask problem in atomic write f2fs: fix to restrict mount condition on readonly block device f2fs: introduce gc_merge mount option f2fs: fix to cover __allocate_new_section() with curseg_lock f2fs: fix wrong alloc_type in f2fs_do_replace_block f2fs: delete empty compress.h f2fs: fix a typo in inode.c ...
Diffstat (limited to 'fs/f2fs/namei.c')
-rw-r--r--fs/f2fs/namei.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 377c6b161b23..a9cd9cf97229 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -418,6 +418,7 @@ struct dentry *f2fs_get_parent(struct dentry *child)
{
struct page *page;
unsigned long ino = f2fs_inode_by_name(d_inode(child), &dotdot_name, &page);
+
if (!ino) {
if (IS_ERR(page))
return ERR_CAST(page);
@@ -627,6 +628,7 @@ static const char *f2fs_get_link(struct dentry *dentry,
struct delayed_call *done)
{
const char *link = page_get_link(dentry, inode, done);
+
if (!IS_ERR(link) && !*link) {
/* this is broken symlink case */
do_delayed_call(done);
@@ -765,6 +767,7 @@ out_fail:
static int f2fs_rmdir(struct inode *dir, struct dentry *dentry)
{
struct inode *inode = d_inode(dentry);
+
if (f2fs_empty_dir(inode))
return f2fs_unlink(dir, dentry);
return -ENOTEMPTY;