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| author |  Logan Gunthorpe <logang@deltatee.com>
| 2022-10-21 11:41:08 -0600 |
|---|---|---|
| committer |  Jens Axboe <axboe@kernel.dk>
| 2022-11-09 11:29:20 -0700 |
| commit | 0f0892356fa174bdd8bd655c820ee3658c4c9f01 (patch) | |
| tree | 905f8673a7c67c1947fd197fba64e935cbec53b4 /include | |
| parent | block: Fix some kernel-doc comments (diff) | |
| download | linux-0f0892356fa174bdd8bd655c820ee3658c4c9f01.tar.gz linux-0f0892356fa174bdd8bd655c820ee3658c4c9f01.tar.bz2 linux-0f0892356fa174bdd8bd655c820ee3658c4c9f01.zip | |
mm: allow multiple error returns in try_grab_page()
In order to add checks for P2PDMA memory into try_grab_page(), expand
the error return from a bool to an int/error code. Update all the
callsites handle change in usage.
Also remove the WARN_ON_ONCE() call at the callsites seeing there
already is a WARN_ON_ONCE() inside the function if it fails.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20221021174116.7200-2-logang@deltatee.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mm.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 8bbcccbc5565..62a91dc1272b 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1129,7 +1129,7 @@ static inline void get_page(struct page *page) folio_get(page_folio(page)); } -bool __must_check try_grab_page(struct page *page, unsigned int flags); +int __must_check try_grab_page(struct page *page, unsigned int flags); static inline __must_check bool try_get_page(struct page *page) { |