kernel/git/stable/linux.git/fs/fuse, branch linux-2.6.31.y

fuse: reject O_DIRECT flag also in fuse_create

2009-12-08T18:21:37+00:00

commit 1b7323965a8c6eee9dc4e345a7ae4bff1dc93149 upstream. The comment in fuse_open about O_DIRECT: "VFS checks this, but only _after_ ->open()" also holds for fuse_create, however, the same kind of check was missing there. As an impact of this bug, open(newfile, O_RDWR|O_CREAT|O_DIRECT) fails, but a stub newfile will remain if the fuse server handled the implied FUSE_CREATE request appropriately. Other impact: in the above situation ima_file_free() will complain to open/free imbalance if CONFIG_IMA is set. Signed-off-by: Csaba Henk Signed-off-by: Miklos Szeredi Cc: Harshavardhana Signed-off-by: Greg Kroah-Hartman

fuse: fix kunmap in fuse_ioctl_copy_user

2009-11-10T00:22:44+00:00

commit 0bd87182d3ab18a32a8e9175d3f68754c58e3432 upstream. Looks like another victim of the confusing kmap() vs kmap_atomic() API differences. Reported-by: Todor Gyumyushev Signed-off-by: Jens Axboe Signed-off-by: Miklos Szeredi Cc: Tejun Heo Signed-off-by: Greg Kroah-Hartman

fuse: prevent fuse_put_request on invalid pointer

2009-11-10T00:22:44+00:00

commit f60311d5f7670d9539b424e4ed8b5c0872fc9e83 upstream. fuse_direct_io() has a loop where requests are allocated in each iteration. if allocation fails, the loop is broken out and follows into an unconditional fuse_put_request() on that invalid pointer. Signed-off-by: Anand V. Avati Signed-off-by: Miklos Szeredi Signed-off-by: Greg Kroah-Hartman

Revert "fuse: Fix build error" as unnecessary

2009-07-11T18:22:34+00:00

This reverts commit 097041e576ee3a50d92dd643ee8ca65bf6a62e21. Trond had a better fix, which is the parent of this one ("Fix compile error due to congestion_wait() changes") Requested-by: Trond Myklebust Acked-by: Larry Finger Signed-off-by: Linus Torvalds

fuse: Fix build error

2009-07-11T02:09:46+00:00

When building v2.6.31-rc2-344-g69ca06c, the following build errors are found due to missing includes: CC [M] fs/fuse/dev.o fs/fuse/dev.c: In function ‘request_end’: fs/fuse/dev.c:289: error: ‘BLK_RW_SYNC’ undeclared (first use in this function) ... fs/nfs/write.c: In function ‘nfs_set_page_writeback’: fs/nfs/write.c:207: error: ‘BLK_RW_ASYNC’ undeclared (first use in this function) Signed-off-by: Larry Finger@lwfinger.net> Signed-off-by: Linus Torvalds

Fix congestion_wait() sync/async vs read/write confusion

2009-07-10T18:31:53+00:00

Commit 1faa16d22877f4839bd433547d770c676d1d964c accidentally broke the bdi congestion wait queue logic, causing us to wait on congestion for WRITE (== 1) when we really wanted BLK_RW_ASYNC (== 0) instead. Signed-off-by: Jens Axboe

fuse: invalidation reverse calls

2009-06-30T18:12:24+00:00

Add notification messages that allow the filesystem to invalidate VFS caches. Two notifications are added: 1) inode invalidation - invalidate cached attributes - invalidate a range of pages in the page cache (this is optional) 2) dentry invalidation - try to invalidate a subtree in the dentry cache Care must be taken while accessing the 'struct super_block' for the mount, as it can go away while an invalidation is in progress. To prevent this, introduce a rw-semaphore, that is taken for read during the invalidation and taken for write in the ->kill_sb callback. Cc: Csaba Henk Cc: Anand Avati Signed-off-by: Miklos Szeredi

fuse: allow umask processing in userspace

2009-06-30T18:12:23+00:00

This patch lets filesystems handle masking the file mode on creation. This is needed if filesystem is using ACLs. - The CREATE, MKDIR and MKNOD requests are extended with a "umask" parameter. - A new FUSE_DONT_MASK flag is added to the INIT request/reply. With this the filesystem may request that the create mode is not masked. CC: Jean-Pierre André Signed-off-by: Miklos Szeredi

fuse: fix bad return value in fuse_file_poll()

2009-06-30T18:06:24+00:00

Fix fuse_file_poll() which returned a -errno value instead of a poll mask. Signed-off-by: Miklos Szeredi CC: stable@kernel.org

fuse: fix return value of fuse_dev_write()

2009-06-30T18:06:23+00:00

On 64 bit systems -- where sizeof(ssize_t) > sizeof(int) -- the following test exposes a bug due to a non-careful return of an int or unsigned value: implement a FUSE filesystem which sends an unsolicited notification to the kernel with invalid opcode. The respective write to /dev/fuse will return (1 << 32) - EINVAL with errno == 0 instead of -1 with errno == EINVAL. Signed-off-by: Miklos Szeredi CC: stable@kernel.org