diff options
| author | Amir Goldstein <amir73il@gmail.com> | 2025-03-12 08:38:52 +0100 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2025-03-13 16:31:12 +0100 |
| commit | 252256e416deb255607f0c4a69e7cfec079e5d61 (patch) | |
| tree | 89fddcb3b822b828c6ad5bbf03fdce69f1613f8f /mm/filemap.c | |
| parent | 4f4dc3a9378bc2e6bcf331ee9e65a21abf67e7e0 (diff) | |
Revert "fanotify: disable readahead if we have pre-content watches"
This reverts commit fac84846a28c0950d4433118b3dffd44306df62d.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20250312073852.2123409-7-amir73il@gmail.com
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index ff5fcdd96136..6d616bb9001e 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -3197,14 +3197,6 @@ static struct file *do_sync_mmap_readahead(struct vm_fault *vmf) unsigned long vm_flags = vmf->vma->vm_flags; unsigned int mmap_miss; - /* - * If we have pre-content watches we need to disable readahead to make - * sure that we don't populate our mapping with 0 filled pages that we - * never emitted an event for. - */ - if (unlikely(FMODE_FSNOTIFY_HSM(file->f_mode))) - return fpin; - #ifdef CONFIG_TRANSPARENT_HUGEPAGE /* Use the readahead code, even if readahead is disabled */ if ((vm_flags & VM_HUGEPAGE) && HPAGE_PMD_ORDER <= MAX_PAGECACHE_ORDER) { @@ -3273,10 +3265,6 @@ static struct file *do_async_mmap_readahead(struct vm_fault *vmf, struct file *fpin = NULL; unsigned int mmap_miss; - /* See comment in do_sync_mmap_readahead. */ - if (unlikely(FMODE_FSNOTIFY_HSM(file->f_mode))) - return fpin; - /* If we don't want any read-ahead, don't bother */ if (vmf->vma->vm_flags & VM_RAND_READ || !ra->ra_pages) return fpin; |