BMC/Intel-BMC/linux.git/fs/affs/super.c, branch dev-4.4

affs: fix remount failure when there are no options changed

2016-06-08T01:14:32+00:00

commit 01d6e08711bf90bc4d7ead14a93a0cbd73b1896a upstream. Commit c8f33d0bec99 ("affs: kstrdup() memory handling") checks if the kstrdup function returns NULL due to out-of-memory condition. However, if we are remounting a filesystem with no change to filesystem-specific options, the parameter data is NULL. In this case, kstrdup returns NULL (because it was passed NULL parameter), although no out of memory condition exists. The mount syscall then fails with ENOMEM. This patch fixes the bug. We fail with ENOMEM only if data is non-NULL. The patch also changes the call to replace_mount_options - if we didn't pass any filesystem-specific options, we don't call replace_mount_options (thus we don't erase existing reported options). Fixes: c8f33d0bec99 ("affs: kstrdup() memory handling") Signed-off-by: Mikulas Patocka Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

fs/affs: make root lookup from blkdev logical size

2015-09-10T20:29:01+00:00

This patch resolves https://bugzilla.kernel.org/show_bug.cgi?id=16531. When logical blkdev size > 512 then sector numbers become larger than the device can support. Make affs start lookup based on the device's logical sector size instead of 512. Reported-by: Mark Suggested-by: Mark Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

affs: kstrdup() memory handling

2015-04-17T13:04:09+00:00

There is a possibility of kstrdup() failure upon memory pressure. Therefore, returning ENOMEM even for new_opts. [akpm@linux-foundation.org: cleanup] Signed-off-by: Sanidhya Kashyap Cc: Taesoo kim Cc: Fabian Frederick Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

fs/affs: use affs_test_opt()

2015-04-17T13:04:08+00:00

Replace mount option test by affs_test_opt(). Signed-off-by: Fabian Frederick Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

fs/affs/super.c: use affs_set_opt()

2015-04-17T13:04:08+00:00

Replace direct mount option assignation by affs_set_opt() macro. Signed-off-by: Fabian Frederick Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

fs/affs: use AFFS_MOUNT prefix for mount options

2015-04-17T13:04:08+00:00

Currently, affs still uses direct access on mount_options. This patch prepares to use affs_clear/set/test_opt() like other filesystems. Signed-off-by: Fabian Frederick Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

fs/affs/super.c: fix switch indentation

2015-02-17T22:34:53+00:00

Fix checkpatch error: ERROR: switch and case should be at the same indent Signed-off-by: Fabian Frederick Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

fs/affs: define AFFSNAMEMAX to replace constant use

2015-02-17T22:34:52+00:00

30 was used all over the place to compare name length against AFFS maximum name length. Signed-off-by: Fabian Frederick Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

fs/affs/super.c: destroy sbi mutex in affs_kill_sb()

2015-02-17T22:34:52+00:00

Call mutex_destroy() on superblock mutex in affs_kill_sb() otherwise mutex debugging code isn't able to detect that mutex is used after being freed. (thanks to Jan Kara for complete definition). Signed-off-by: Fabian Frederick Cc: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

fs/affs: remove redundant sys_tz declarations

2014-10-14T00:18:22+00:00

sys_tz is already declared in include/linux/time.h Signed-off-by: Fabian Frederick Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds