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| author | Jan Kara <jack@suse.cz> | 2016-11-20 18:51:24 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2016-11-20 18:51:24 -0500 |
| commit | e2ae766c1b030271b5099b25674e2131d1d1e8c1 (patch) | |
| tree | 95a2676b55c9de1ff3a5085154c8493a1537b597 /fs/ext4/file.c | |
| parent | 96f8ba3dd632aff684cc7c67d9f4af435be0341c (diff) | |
| download | linux-e2ae766c1b030271b5099b25674e2131d1d1e8c1.tar.gz | |
ext4: convert DAX faults to iomap infrastructure
Convert DAX faults to use iomap infrastructure. We would not have to start
transaction in ext4_dax_fault() anymore since ext4_iomap_begin takes
care of that but so far we do that to avoid lock inversion of
transaction start with DAX entry lock which gets acquired in
dax_iomap_fault() before calling ->iomap_begin handler.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/file.c')
| -rw-r--r-- | fs/ext4/file.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 1953fe34f9fe1..b5f184493c57b 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -275,7 +275,7 @@ static int ext4_dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf) if (IS_ERR(handle)) result = VM_FAULT_SIGBUS; else - result = dax_fault(vma, vmf, ext4_dax_get_block); + result = dax_iomap_fault(vma, vmf, &ext4_iomap_ops); if (write) { if (!IS_ERR(handle)) @@ -309,9 +309,10 @@ static int ext4_dax_pmd_fault(struct vm_area_struct *vma, unsigned long addr, if (IS_ERR(handle)) result = VM_FAULT_SIGBUS; - else - result = dax_pmd_fault(vma, addr, pmd, flags, - ext4_dax_get_block); + else { + result = dax_iomap_pmd_fault(vma, addr, pmd, flags, + &ext4_iomap_ops); + } if (write) { if (!IS_ERR(handle)) |