Commit 9597376b authored by Ritesh Harjani (IBM)'s avatar Ritesh Harjani (IBM) Committed by Theodore Ts'o
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ext4: Rename and document EXT4_EX_FILTER to EXT4_EX_QUERY_FILTER 



Rename EXT4_EX_FILTER to EXT4_EX_QUERY_FILTER to better describe its
purpose as a filter mask used specifically in ext4_map_query_blocks().
Add a comment explaining that this macro is used to filter flags needed
when querying the on-disk extent tree.

We will later use EXT4_EX_QUERY_FILTER mask to add another
EXT4_GET_BLOCKS_QUERY needed to lookup in on-disk extent tree.

Signed-off-by: default avatarRitesh Harjani (IBM) <ritesh.list@gmail.com>
Link: https://patch.msgid.link/51f05d0ba286372eb8693af95bd4b10194b53141.1747677758.git.ritesh.list@gmail.com


Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
parent 797ac3ca

fs/ext4/ext4.h

+6 −1
Original line number Diff line number Diff line
@@ -757,7 +757,12 @@ enum { 
#define EXT4_EX_NOCACHE				0x40000000

#define EXT4_EX_FORCE_CACHE			0x20000000

#define EXT4_EX_NOFAIL				0x10000000

#define EXT4_EX_FILTER				0x70000000

/*

 * ext4_map_query_blocks() uses this filter mask to filter the flags needed to

 * pass while lookup/querying of on disk extent tree.

 */

#define EXT4_EX_QUERY_FILTER	(EXT4_EX_NOCACHE | EXT4_EX_FORCE_CACHE |\

				 EXT4_EX_NOFAIL)



/*

 * Flags used by ext4_free_blocks

fs/ext4/inode.c

+1 −1
Original line number Diff line number Diff line
@@ -546,7 +546,7 @@ static int ext4_map_query_blocks(handle_t *handle, struct inode *inode, 
	unsigned int orig_mlen = map->m_len;

	unsigned int query_flags = flags & EXT4_GET_BLOCKS_QUERY_LAST_IN_LEAF;



	flags &= EXT4_EX_FILTER;

	flags &= EXT4_EX_QUERY_FILTER;

	if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))

		retval = ext4_ext_map_blocks(handle, inode, map,

					     flags | query_flags);