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| author | Jan Kara <jack@suse.cz> | 2016-05-12 18:29:14 +0200 |
|---|---|---|
| committer | Ross Zwisler <ross.zwisler@linux.intel.com> | 2016-05-19 15:13:00 -0600 |
| commit | b9953536c95fd0013695542bfa4694c7468673aa (patch) | |
| tree | a09a87cae89652322866b03f3228411490f8a15c /fs/dax.c | |
| parent | 40543f62cbdce42633e3fe10923099feee272e1f (diff) | |
| download | lwn-b9953536c95fd0013695542bfa4694c7468673aa.tar.gz lwn-b9953536c95fd0013695542bfa4694c7468673aa.zip | |
dax: Fix condition for filling of PMD holes
Currently dax_pmd_fault() decides to fill a PMD-sized hole only if
returned buffer has BH_Uptodate set. However that doesn't get set for
any mapping buffer so that branch is actually a dead code. The
BH_Uptodate check doesn't make any sense so just remove it.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Diffstat (limited to 'fs/dax.c')
| -rw-r--r-- | fs/dax.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -788,7 +788,7 @@ int __dax_pmd_fault(struct vm_area_struct *vma, unsigned long address, i_mmap_lock_read(mapping); - if (!write && !buffer_mapped(&bh) && buffer_uptodate(&bh)) { + if (!write && !buffer_mapped(&bh)) { spinlock_t *ptl; pmd_t entry; struct page *zero_page = get_huge_zero_page(); |