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| author | David Sterba <dsterba@suse.com> | 2023-05-25 02:04:37 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2023-06-19 14:59:30 +0300 |
| commit | 62bc60473ad202aa414edf304a78ddd7bc10ac49 (patch) | |
| tree | b2dab1c286a54e34006235ac9f35c139aa4a4c48 /fs/btrfs/extent-io-tree.h | |
| parent | 7dde7a8ab32417f28c4ac0111f8a8389fc0501ff (diff) | |
| download | linux-62bc60473ad202aa414edf304a78ddd7bc10ac49.tar.xz | |
btrfs: pass NOWAIT for set/clear extent bits as another bit
The only flags we now pass to set_extent_bit/__clear_extent_bit are
GFP_NOFS and GFP_NOWAIT (a few functions handling mappings). This
requires an extra parameter to be passed everywhere but is almost always
the same.
Encode the GFP_NOWAIT as an artificial extent bit and extract the
real bits and gfp mask in the lowest level helpers. Now the passed
gfp mask is not actually used and can be removed.
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/extent-io-tree.h')
| -rw-r--r-- | fs/btrfs/extent-io-tree.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/btrfs/extent-io-tree.h b/fs/btrfs/extent-io-tree.h index 5a53a4558366..d7f5afeb5ce7 100644 --- a/fs/btrfs/extent-io-tree.h +++ b/fs/btrfs/extent-io-tree.h @@ -43,6 +43,15 @@ enum { * want the extent states to go away. */ ENUM_BIT(EXTENT_CLEAR_ALL_BITS), + + /* + * This must be last. + * + * Bit not representing a state but a request for NOWAIT semantics, + * e.g. when allocating memory, and must be masked out from the other + * bits. + */ + ENUM_BIT(EXTENT_NOWAIT) }; #define EXTENT_DO_ACCOUNTING (EXTENT_CLEAR_META_RESV | \ |