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| author | Amir Goldstein <[email protected]> | 2025-03-12 07:38:52 +0000 |
|---|---|---|
| committer | Jan Kara <[email protected]> | 2025-03-13 15:31:12 +0000 |
| commit | 252256e416deb255607f0c4a69e7cfec079e5d61 (patch) | |
| tree | 89fddcb3b822b828c6ad5bbf03fdce69f1613f8f /mm/filemap.c | |
| parent | Revert "mm: don't allow huge faults for files with pre content watches" (diff) | |
| download | kernel-252256e416deb255607f0c4a69e7cfec079e5d61.tar.gz kernel-252256e416deb255607f0c4a69e7cfec079e5d61.zip | |
Revert "fanotify: disable readahead if we have pre-content watches"
This reverts commit fac84846a28c0950d4433118b3dffd44306df62d.
Signed-off-by: Amir Goldstein <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Link: https://patch.msgid.link/[email protected]
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; |