kernel_samsung_sm7125

jenna

History

Ryusuke Konishi 705304a863 nilfs2: fix the nilfs_iget() vs. nilfs_new_inode() races Same story as in commit `41080b5a24` ("nfsd race fixes: ext2") (similar ext2 fix) except that nilfs2 needs to use insert_inode_locked4() instead of insert_inode_locked() and a bug of a check for dead inodes needs to be fixed. If nilfs_iget() is called from nfsd after nilfs_new_inode() calls insert_inode_locked4(), nilfs_iget() will wait for unlock_new_inode() at the end of nilfs_mkdir()/nilfs_create()/etc to unlock the inode. If nilfs_iget() is called before nilfs_new_inode() calls insert_inode_locked4(), it will create an in-core inode and read its data from the on-disk inode. But, nilfs_iget() will find i_nlink equals zero and fail at nilfs_read_inode_common(), which will lead it to call iget_failed() and cleanly fail. However, this sanity check doesn't work as expected for reused on-disk inodes because they leave a non-zero value in i_mode field and it hinders the test of i_nlink. This patch also fixes the issue by removing the test on i_mode that nilfs2 doesn't need. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		10 years ago
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Kconfig	fs/nilfs2: remove depends on CONFIG_EXPERIMENTAL	12 years ago
Makefile	nilfs2: integrate sysfs support into driver	11 years ago
alloc.c	nilfs2: implement calculation of free inodes count	12 years ago
alloc.h	nilfs2: implement calculation of free inodes count	12 years ago
bmap.c	…
bmap.h	nilfs2: add omitted comments for different structures in driver implementation	13 years ago
btnode.c	…
btnode.h	nilfs2: add omitted comments for different structures in driver implementation	13 years ago
btree.c	…
btree.h	…
cpfile.c	nilfs2: verify metadata sizes read from disk	11 years ago
cpfile.h	…
dat.c	nilfs2: verify metadata sizes read from disk	11 years ago
dat.h	…
dir.c	[readdir] convert nilfs2	12 years ago
direct.c	…
direct.h	…
export.h	nilfs2: add omitted comments for different structures in driver implementation	13 years ago
file.c	nilfs2: avoid duplicate segment construction for fsync()	10 years ago
gcinode.c	…
ifile.c	] nilfs2: use atomic64_t type for inodes_count and blocks_count fields in nilfs_root struct	12 years ago
ifile.h	nilfs2: implement calculation of free inodes count	12 years ago
inode.c	nilfs2: fix the nilfs_iget() vs. nilfs_new_inode() races	10 years ago
ioctl.c	nilfs2: add missing blkdev_issue_flush() to nilfs_sync_fs()	10 years ago
mdt.c	nilfs2: fix issue with flush kernel thread after remount in RO mode because of driver's internal error or metadata corruption	12 years ago
mdt.h	nilfs2: add omitted comments for different structures in driver implementation	13 years ago
namei.c	nilfs2: fix the nilfs_iget() vs. nilfs_new_inode() races	10 years ago
nilfs.h	nilfs2: improve the performance of fdatasync()	10 years ago
page.c	nilfs2: fix issue with race condition of competition between segments for dirty blocks	12 years ago
page.h	nilfs2: fix issue with flush kernel thread after remount in RO mode because of driver's internal error or metadata corruption	12 years ago
recovery.c	nilfs2: drop vmtruncate	12 years ago
segbuf.c	block: Abstract out bvec iterator	11 years ago
segbuf.h	…
segment.c	nilfs2: improve the performance of fdatasync()	10 years ago
segment.h	…
sufile.c	nilfs2: verify metadata sizes read from disk	11 years ago
sufile.h	nilfs2: add nilfs_sufile_trim_fs to trim clean segs	11 years ago
super.c	nilfs2: add missing blkdev_issue_flush() to nilfs_sync_fs()	10 years ago
sysfs.c	nilfs2: integrate sysfs support into driver	11 years ago
sysfs.h	nilfs2: add /sys/fs/nilfs2/<device>/mounted_snapshots/<snapshot> group	11 years ago
the_nilfs.c	nilfs2: deletion of an unnecessary check before the function call "iput"	10 years ago
the_nilfs.h	nilfs2: add missing blkdev_issue_flush() to nilfs_sync_fs()	10 years ago