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8cf037a8b2
linux/fs/ext2
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Dan Williams 8cf037a8b2 ext2: perform dax_device lookup at mount 
The ->iomap_begin() operation is a hot path, so cache the
fs_dax_get_by_host() result at mount time to avoid the incurring the
hash lookup overhead on a per-i/o basis.

Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Reviewed-by: Jan Kara <jack@suse.cz>
Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-08-31 09:33:30 -07:00
..
acl.c ext2: preserve i_mode if ext2_set_acl() fails 2017-07-18 11:23:56 +02:00
acl.h ext2/3/4: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
balloc.c sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h> 2017-03-02 08:42:31 +01:00
dir.c mm: drop "wait" parameter from write_one_page() 2017-07-05 18:44:22 -04:00
ext2.h ext2: perform dax_device lookup at mount 2017-08-31 09:33:30 -07:00
file.c fs: check for writeback errors after syncing out buffers in generic_file_fsync 2017-07-06 07:02:21 -04:00
ialloc.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
inode.c ext2: perform dax_device lookup at mount 2017-08-31 09:33:30 -07:00
ioctl.c ext2: Remove ext2_get_inode_flags() 2017-04-19 14:21:23 +02:00
Kconfig dax: fix build warnings with FS_DAX and !FS_IOMAP 2017-01-24 16:26:14 -08:00
Makefile ext2: remove xip.c and xip.h 2015-02-16 17:56:03 -08:00
namei.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-10 20:16:43 -07:00
super.c ext2: perform dax_device lookup at mount 2017-08-31 09:33:30 -07:00
symlink.c vfs: remove ".readlink = generic_readlink" assignments 2016-12-09 16:45:04 +01:00
xattr_security.c switch xattr_handler->set() to passing dentry and inode separately 2016-05-27 15:39:43 -04:00
xattr_trusted.c switch xattr_handler->set() to passing dentry and inode separately 2016-05-27 15:39:43 -04:00
xattr_user.c switch xattr_handler->set() to passing dentry and inode separately 2016-05-27 15:39:43 -04:00
xattr.c ext2, ext4: make mb block cache names more explicit 2017-06-22 11:28:55 -04:00
xattr.h mbcache2: rename to mbcache 2016-02-22 22:35:22 -05:00