linux.git/fs/f2fs/node.h, branch v6.16

f2fs: Pass a folio to set_nid()

2025-04-28T15:26:47+00:00

All callers have a folio, so pass it in.  Removes two calls to
compound_head().

Signed-off-by: Matthew Wilcox (Oracle) 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: Pass a folio to next_blkaddr_of_node()

2025-04-28T15:22:44+00:00

Pass the folio into sanity_check_node_footer() so that we can pass
it further into next_blkaddr_of_node().  Removes a lot of conversions
from folio->page.

Signed-off-by: Matthew Wilcox (Oracle) 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: do sanity check on xattr node footer in f2fs_get_xnode_page()

2025-03-11T03:25:53+00:00

This patch introduces a new wrapper f2fs_get_xnode_page(), then, caller
can use it to load xattr block to page cache, meanwhile it will do sanity
check on xattr node footer.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: do sanity check on inode footer in f2fs_get_inode_page()

2025-03-11T03:25:53+00:00

This patch introduces a new wrapper f2fs_get_inode_page(), then, caller
can use it to load inode block to page cache, meanwhile it will do sanity
check on inode footer.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: Mark some functions as taking a const page pointer

2025-03-04T17:02:25+00:00

The compiler can make some optimisations if we tell it that a function
call doesn't change this memory.

Signed-off-by: Matthew Wilcox (Oracle) 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: use BLKS_PER_SEG, BLKS_PER_SEC, and SEGS_PER_SEC

2024-02-27T17:41:12+00:00

No functional change.

Reviewed-by: Daeho Jeong 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: fix compile warning in f2fs_destroy_node_manager()

2023-06-30T23:38:27+00:00

fs/f2fs/node.c: In function ‘f2fs_destroy_node_manager’:
fs/f2fs/node.c:3390:1: warning: the frame size of 1048 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 3390 | }

Merging below pointer arrays into common one, and reuse it by cast type.

struct nat_entry *natvec[NATVEC_SIZE];
struct nat_entry_set *setvec[SETVEC_SIZE];

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: convert to use bitmap API

2023-03-29T22:17:37+00:00

Let's use BIT() and GENMASK() instead of open it.

Signed-off-by: Yangtao Li 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: add block_age-based extent cache

2022-12-12T22:53:56+00:00

This patch introduces a runtime hot/cold data separation method
for f2fs, in order to improve the accuracy for data temperature
classification, reduce the garbage collection overhead after
long-term data updates.

Enhanced hot/cold data separation can record data block update
frequency as "age" of the extent per inode, and take use of the age
info to indicate better temperature type for data block allocation:
 - It records total data blocks allocated since mount;
 - When file extent has been updated, it calculate the count of data
blocks allocated since last update as the age of the extent;
 - Before the data block allocated, it searches for the age info and
chooses the suitable segment for allocation.

Test and result:
 - Prepare: create about 30000 files
  * 3% for cold files (with cold file extension like .apk, from 3M to 10M)
  * 50% for warm files (with random file extension like .FcDxq, from 1K
to 4M)
  * 47% for hot files (with hot file extension like .db, from 1K to 256K)
 - create(5%)/random update(90%)/delete(5%) the files
  * total write amount is about 70G
  * fsync will be called for .db files, and buffered write will be used
for other files

The storage of test device is large enough(128G) so that it will not
switch to SSR mode during the test.

Benefit: dirty segment count increment reduce about 14%
 - before: Dirty +21110
 - after:  Dirty +18286

Signed-off-by: qixiaoyu1 
Signed-off-by: xiongping1 
Signed-off-by: Jaegeuk Kim

f2fs: specify extent cache for read explicitly

2022-12-12T22:53:55+00:00

Let's descrbie it's read extent cache.

Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim