path: root/fs/ntfs
diff options
authorLinus Torvalds <torvalds@linux-foundation.org>2021-11-02 12:25:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-02 12:25:03 -0700
commitc03098d4b9ad76bca2966a8769dcfe59f7f85103 (patch)
treee7e2a6a0a84ad29baa14c018e3d4dcb12bd08fd6 /fs/ntfs
parentMerge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm (diff)
parentgfs2: Fix mmap + page fault deadlocks for direct I/O (diff)
Merge tag 'gfs2-v5.15-rc5-mmap-fault' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 mmap + page fault deadlocks fixes from Andreas Gruenbacher: "Functions gfs2_file_read_iter and gfs2_file_write_iter are both accessing the user buffer to write to or read from while holding the inode glock. In the most basic deadlock scenario, that buffer will not be resident and it will be mapped to the same file. Accessing the buffer will trigger a page fault, and gfs2 will deadlock trying to take the same inode glock again while trying to handle that fault. Fix that and similar, more complex scenarios by disabling page faults while accessing user buffers. To make this work, introduce a small amount of new infrastructure and fix some bugs that didn't trigger so far, with page faults enabled" * tag 'gfs2-v5.15-rc5-mmap-fault' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: gfs2: Fix mmap + page fault deadlocks for direct I/O iov_iter: Introduce nofault flag to disable page faults gup: Introduce FOLL_NOFAULT flag to disable page faults iomap: Add done_before argument to iomap_dio_rw iomap: Support partial direct I/O on user copy failures iomap: Fix iomap_dio_rw return value for user copies gfs2: Fix mmap + page fault deadlocks for buffered I/O gfs2: Eliminate ip->i_gh gfs2: Move the inode glock locking to gfs2_file_buffered_write gfs2: Introduce flag for glock holder auto-demotion gfs2: Clean up function may_grant gfs2: Add wrapper for iomap_file_buffered_write iov_iter: Introduce fault_in_iov_iter_writeable iov_iter: Turn iov_iter_fault_in_readable into fault_in_iov_iter_readable gup: Turn fault_in_pages_{readable,writeable} into fault_in_{readable,writeable} powerpc/kvm: Fix kvm_use_magic_page iov_iter: Fix iov_iter_get_pages{,_alloc} page fault return value
Diffstat (limited to 'fs/ntfs')
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index 373dbb627657..2ae25e48a41a 100644
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -1830,7 +1830,7 @@ again:
* pages being swapped out between us bringing them into memory
* and doing the actual copying.
- if (unlikely(iov_iter_fault_in_readable(i, bytes))) {
+ if (unlikely(fault_in_iov_iter_readable(i, bytes))) {
status = -EFAULT;