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ext4: use BIT() macro for BH_** state bits

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Simply use BIT() macro for all BH_** state bits instead of open
coding it.

There should be no functionality change in this patch.

Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/57667689f51a3f9dba2fcef7d3425187fa3ba69f.1589086800.git.riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Ritesh Harjani 2020-05-10 11:54:51 +05:30 committed by Theodore Ts'o
parent 9bee5779ee
commit 6db0746189
2 changed files with 6 additions and 6 deletions
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8
fs/ext4/ext4.h
View File

@ -171,10 +171,10 @@ struct ext4_allocation_request {
* well as to store the information returned by ext4_map_blocks(). It * well as to store the information returned by ext4_map_blocks(). It
* takes less room on the stack than a struct buffer_head. * takes less room on the stack than a struct buffer_head.
*/ */
#define EXT4_MAP_NEW (1 << BH_New) #define EXT4_MAP_NEW BIT(BH_New)
#define EXT4_MAP_MAPPED (1 << BH_Mapped) #define EXT4_MAP_MAPPED BIT(BH_Mapped)
#define EXT4_MAP_UNWRITTEN (1 << BH_Unwritten) #define EXT4_MAP_UNWRITTEN BIT(BH_Unwritten)
#define EXT4_MAP_BOUNDARY (1 << BH_Boundary) #define EXT4_MAP_BOUNDARY BIT(BH_Boundary)
#define EXT4_MAP_FLAGS (EXT4_MAP_NEW | EXT4_MAP_MAPPED |\ #define EXT4_MAP_FLAGS (EXT4_MAP_NEW | EXT4_MAP_MAPPED |\
EXT4_MAP_UNWRITTEN | EXT4_MAP_BOUNDARY) EXT4_MAP_UNWRITTEN | EXT4_MAP_BOUNDARY)

4
fs/ext4/inode.c
View File

@ -2084,7 +2084,7 @@ static int mpage_submit_page(struct mpage_da_data *mpd, struct page *page)
return err; return err;
} }
#define BH_FLAGS ((1 << BH_Unwritten) | (1 << BH_Delay)) #define BH_FLAGS (BIT(BH_Unwritten) | BIT(BH_Delay))
/* /*
* mballoc gives us at most this number of blocks... * mballoc gives us at most this number of blocks...
@ -2364,7 +2364,7 @@ static int mpage_map_one_extent(handle_t *handle, struct mpage_da_data *mpd)
dioread_nolock = ext4_should_dioread_nolock(inode); dioread_nolock = ext4_should_dioread_nolock(inode);
if (dioread_nolock) if (dioread_nolock)
get_blocks_flags |= EXT4_GET_BLOCKS_IO_CREATE_EXT; get_blocks_flags |= EXT4_GET_BLOCKS_IO_CREATE_EXT;
if (map->m_flags & (1 << BH_Delay)) if (map->m_flags & BIT(BH_Delay))
get_blocks_flags |= EXT4_GET_BLOCKS_DELALLOC_RESERVE; get_blocks_flags |= EXT4_GET_BLOCKS_DELALLOC_RESERVE;
err = ext4_map_blocks(handle, inode, map, get_blocks_flags); err = ext4_map_blocks(handle, inode, map, get_blocks_flags);