kernel/git/stable/linux.git/fs/fuse/inode.c, branch linux-2.6.14.y

[PATCH] FUSE: don't allow restarting of system calls

2005-09-09T21:03:48+00:00

This patch removes ability to interrupt and restart operations while there hasn't been any side-effect. The reason: applications. There are some apps it seems that generate signals at a fast rate. This means, that if the operation cannot make enough progress between two signals, it will be restarted for ever. This bug actually manifested itself with 'krusader' trying to open a file for writing under sshfs. Thanks to Eduard Czimbalmos for the report. The problem can be solved just by making open() uninterruptible, because in this case it was the truncate operation that slowed down the progress. But it's better to solve this by simply not allowing interrupts at all (except SIGKILL), because applications don't expect file operations to be interruptible anyway. As an added bonus the code is simplified somewhat. Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] fuse: don't update file times

2005-09-09T21:03:47+00:00

Don't change mtime/ctime/atime to local time on read/write. Rather invalidate file attributes, so next stat() will force a GETATTR call. Bug reported by Ben Grimm. Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] fuse: more flexible caching

2005-09-09T21:03:47+00:00

Make data caching behavior selectable on a per-open basis instead of per-mount. Compatibility for the old mount options 'kernel_cache' and 'direct_io' is retained in the userspace library (version 2.4.0-pre1 or later). Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] FUSE - direct I/O

2005-09-09T21:03:46+00:00

This patch adds support for the "direct_io" mount option of FUSE. When this mount option is specified, the page cache is bypassed for read and write operations. This is useful for example, if the filesystem doesn't know the size of files before reading them, or when any kind of caching is harmful. Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] fuse: stricter mount option checking

2005-09-09T21:03:46+00:00

Check for the presence of all mandatory mount options. Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] FUSE: tighten check for processes allowed access

2005-09-09T21:03:46+00:00

This patch tightens the check for allowing processes to access non-privileged mounts. The rational is that the filesystem implementation can control the behavior or get otherwise unavailable information of the filesystem user. If the filesystem user process has the same uid, gid, and is not suid or sgid application, then access is safe. Otherwise access is not allowed unless the "allow_other" mount option is given (for which policy is controlled by the userspace mount utility). Thanks to everyone linux-fsdevel, especially Martin Mares who helped uncover problems with the previous approach. Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] FUSE - readpages operation

2005-09-09T21:03:46+00:00

This patch adds readpages support to FUSE. With the help of the readpages() operation multiple reads are bundled together and sent as a single request to userspace. This can improve reading performace. Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] FUSE - mount options

2005-09-09T21:03:45+00:00

This patch adds miscellaneous mount options to the FUSE filesystem. The following mount options are added: o default_permissions: check permissions with generic_permission() o allow_other: allow other users to access files o allow_root: allow root to access files o kernel_cache: don't invalidate page cache on open Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] FUSE - file operations

2005-09-09T21:03:45+00:00

This patch adds the file operations of FUSE. The following operations are added: o open o flush o release o fsync o readpage o commit_write Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] FUSE - read-write operations

2005-09-09T21:03:45+00:00

This patch adds the write filesystem operations of FUSE. The following operations are added: o setattr o symlink o mknod o mkdir o create o unlink o rmdir o rename o link Signed-off-by: Miklos Szeredi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds