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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-12-12 11:06:41 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-12-12 11:06:41 -0800 |
| commit | eaadbbaaff74ac9a7f84f412fbaac221a04896c1 (patch) | |
| tree | 985f25e3d532535549890c1c669ccaed415141c7 /Documentation | |
| parent | 8b8cd4beea4f6c68092736c544a797dcd5e094c5 (diff) | |
| parent | 3f29f1c336c0e8a4bec52f1e5217f88835553e5b (diff) | |
Merge tag 'fuse-fixes-6.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fixes from Miklos Szeredi:
- Fix a couple of potential crashes, one introduced in 6.6 and one
in 5.10
- Fix misbehavior of virtiofs submounts on memory pressure
- Clarify naming in the uAPI for a recent feature
* tag 'fuse-fixes-6.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: disable FOPEN_PARALLEL_DIRECT_WRITES with FUSE_DIRECT_IO_ALLOW_MMAP
fuse: dax: set fc->dax to NULL in fuse_dax_conn_free()
fuse: share lookup state between submount and its parent
docs/fuse-io: Document the usage of DIRECT_IO_ALLOW_MMAP
fuse: Rename DIRECT_IO_RELAX to DIRECT_IO_ALLOW_MMAP
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/filesystems/fuse-io.rst | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/filesystems/fuse-io.rst b/Documentation/filesystems/fuse-io.rst index 255a368fe534..6464de4266ad 100644 --- a/Documentation/filesystems/fuse-io.rst +++ b/Documentation/filesystems/fuse-io.rst @@ -15,7 +15,8 @@ The direct-io mode can be selected with the FOPEN_DIRECT_IO flag in the FUSE_OPEN reply. In direct-io mode the page cache is completely bypassed for reads and writes. -No read-ahead takes place. Shared mmap is disabled. +No read-ahead takes place. Shared mmap is disabled by default. To allow shared +mmap, the FUSE_DIRECT_IO_ALLOW_MMAP flag may be enabled in the FUSE_INIT reply. In cached mode reads may be satisfied from the page cache, and data may be read-ahead by the kernel to fill the cache. The cache is always kept consistent |