diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2025-07-18 20:53:56 +0100 |
|---|---|---|
| committer | Konstantin Komarov <almaz.alexandrovich@paragon-software.com> | 2025-10-17 16:45:34 +0200 |
| commit | 14656154d26cf244d063477a03606775eec19780 (patch) | |
| tree | 4ece89d95bd515e70f29e656b81aa8c263312ec0 /fs/ntfs3 | |
| parent | 801f614ba263cb37624982b27b4c82f3c3c597a9 (diff) | |
ntfs: Do not kmap pages used for reading from disk
These pages are accessed through DMA and vmap; they are not accessed
by calling page_address(), so they do not need to be kmapped.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Diffstat (limited to 'fs/ntfs3')
| -rw-r--r-- | fs/ntfs3/frecord.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/fs/ntfs3/frecord.c b/fs/ntfs3/frecord.c index c1c2ddaeb1e7..784291ae04e6 100644 --- a/fs/ntfs3/frecord.c +++ b/fs/ntfs3/frecord.c @@ -2590,7 +2590,6 @@ int ni_read_frame(struct ntfs_inode *ni, u64 frame_vbo, struct page **pages, } pages_disk[i] = pg; lock_page(pg); - kmap(pg); } /* Read 'ondisk_size' bytes from disk. */ @@ -2640,7 +2639,6 @@ out3: for (i = 0; i < npages_disk; i++) { pg = pages_disk[i]; if (pg) { - kunmap(pg); unlock_page(pg); put_page(pg); } @@ -2735,7 +2733,6 @@ int ni_write_frame(struct ntfs_inode *ni, struct page **pages, } pages_disk[i] = pg; lock_page(pg); - kmap(pg); } /* To simplify compress algorithm do vmap for source and target pages. */ @@ -2823,7 +2820,6 @@ out1: for (i = 0; i < pages_per_frame; i++) { pg = pages_disk[i]; if (pg) { - kunmap(pg); unlock_page(pg); put_page(pg); } |