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| author | Peng Hao <flyingpeng@tencent.com> | 2021-09-08 16:38:28 +0800 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2021-10-22 17:03:01 +0200 |
| commit | 5fe0fc9f1de63de748b87f121c038d39192a271d (patch) | |
| tree | b9553fb2b3a09efa7044b1f667ef3c7c4f28d445 /fs/fuse/readdir.c | |
| parent | bda9a71980e083699a0360963c0135657b73f47a (diff) | |
| download | linux-5fe0fc9f1de63de748b87f121c038d39192a271d.tar.gz linux-5fe0fc9f1de63de748b87f121c038d39192a271d.tar.bz2 linux-5fe0fc9f1de63de748b87f121c038d39192a271d.zip | |
fuse: use kmap_local_page()
Due to the introduction of kmap_local_*, the storage of slots used for
short-term mapping has changed from per-CPU to per-thread. kmap_atomic()
disable preemption, while kmap_local_*() only disable migration.
There is no need to disable preemption in several kamp_atomic places used
in fuse.
Link: https://lwn.net/Articles/836144/
Signed-off-by: Peng Hao <flyingpeng@tencent.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/fuse/readdir.c')
| -rw-r--r-- | fs/fuse/readdir.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/fuse/readdir.c b/fs/fuse/readdir.c index bc267832310c..e38ac983435a 100644 --- a/fs/fuse/readdir.c +++ b/fs/fuse/readdir.c @@ -76,11 +76,11 @@ static void fuse_add_dirent_to_cache(struct file *file, WARN_ON(fi->rdc.pos != pos)) goto unlock; - addr = kmap_atomic(page); + addr = kmap_local_page(page); if (!offset) clear_page(addr); memcpy(addr + offset, dirent, reclen); - kunmap_atomic(addr); + kunmap_local(addr); fi->rdc.size = (index << PAGE_SHIFT) + offset + reclen; fi->rdc.pos = dirent->off; unlock: |