mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-02-19 14:47:06 -05:00
Code Issues Packages Projects Releases Wiki Activity

xfs: add pre-content fsnotify hook for DAX faults

Browse Source 
xfs has it's own handling for DAX faults, so we need to add the
pre-content fsnotify hook for this case. Other faults go through
filemap_fault so they're handled properly there.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/9eccdf59a65b72f0a1a5e2f2b9bff8eda2d4f2d9.1731684329.git.josef@toxicpanda.com
This commit is contained in:
Josef Bacik
2024-11-15 10:30:30 -05:00
committed by Jan Kara
parent 8392bc2ff8
commit 7f4796a465
1 changed files with 13 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
fs/xfs/xfs_file.c
View File

@@ -1443,6 +1443,9 @@ xfs_dax_read_fault(
trace_xfs_read_fault(ip, order);
ret = filemap_fsnotify_fault(vmf);
if (unlikely(ret))
return ret;
xfs_ilock(ip, XFS_MMAPLOCK_SHARED);
ret = xfs_dax_fault_locked(vmf, order, false);
xfs_iunlock(ip, XFS_MMAPLOCK_SHARED);
@@ -1471,6 +1474,16 @@ xfs_write_fault(
vm_fault_t ret;
trace_xfs_write_fault(ip, order);
/*
* Usually we get here from ->page_mkwrite callback but in case of DAX
* we will get here also for ordinary write fault. Handle HSM
* notifications for that case.
*/
if (IS_DAX(inode)) {
ret = filemap_fsnotify_fault(vmf);
if (unlikely(ret))
return ret;
}
sb_start_pagefault(inode->i_sb);
file_update_time(vmf->vma->vm_file);