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mirror_zfs/module/os/linux/zfs
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Finix1979 320f0c6022
Add Linux posix_fadvise support 
The purpose of this PR is to accepts fadvise ioctl from userland
to do read-ahead by demand.

It could dramatically improve sequential read performance especially
when primarycache is set to metadata or zfs_prefetch_disable is 1.

If the file is mmaped, generic_fadvise is also called for page cache
read-ahead besides dmu_prefetch.

Only POSIX_FADV_WILLNEED and POSIX_FADV_SEQUENTIAL are supported in
this PR currently.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Finix Yan <yancw@info2soft.com>
Closes #13694
2022-09-08 10:29:41 -07:00
..
abd_os.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
arc_os.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
mmp_os.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
policy.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
qat_compress.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
qat_crypt.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
qat.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
spa_misc_os.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
trace.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
vdev_disk.c Linux 5.20 compat: bdevname() 2022-08-04 16:57:33 -07:00
vdev_file.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_acl.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_ctldir.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_debug.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_dir.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_file_os.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_ioctl_os.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_racct.c module: zfs: fix unused, remove argsused 2021-12-23 09:42:47 -08:00
zfs_sysfs.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_uio.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_vfsops.c Add support for per dataset zil stats and use wmsum counters 2022-07-20 17:14:06 -07:00
zfs_vnops_os.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zfs_znode.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zio_crypt.c Remove bcopy(), bzero(), bcmp() 2022-03-15 15:13:42 -07:00
zpl_ctldir.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpl_export.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpl_file.c Add Linux posix_fadvise support 2022-09-08 10:29:41 -07:00
zpl_inode.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpl_super.c Expose ZFS dataset case sensitivity setting via sb_opts 2022-07-14 10:38:16 -07:00
zpl_xattr.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zvol_os.c Linux 5.20 compat: blk_cleanup_disk() 2022-08-04 16:57:49 -07:00