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Description for this pull request:

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- Improve error code handling and four cleanups.
  - Reduce unnecessary valid_size extension during mmap write to avoid
    over-extending writes.
  - Optimize consecutive FAT entry reads by caching buffer heads in
    __exfat_ent_get to significantly reduce sb_bread() calls.
  - Add multi-cluster (contiguous cluster) support to
    exfat_get_cluster() and exfat_map_cluster() for better sequential read
    performance, especially on small cluster sizes.
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Merge tag 'exfat-for-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat

Pull exfat updates from Namjae Jeon:

 - Improve error code handling and four cleanups

 - Reduce unnecessary valid_size extension during mmap write to avoid
   over-extending writes

 - Optimize consecutive FAT entry reads by caching buffer heads in
   __exfat_ent_get to significantly reduce sb_bread() calls

 - Add multi-cluster (contiguous cluster) support to exfat_get_cluster()
   and exfat_map_cluster() for better sequential read performance,
   especially on small cluster sizes

* tag 'exfat-for-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
  exfat: add blank line after declarations
  exfat: remove unnecessary else after return statement
  exfat: support multi-cluster for exfat_get_cluster
  exfat: return the start of next cache in exfat_cache_lookup
  exfat: tweak cluster cache to support zero offset
  exfat: support multi-cluster for exfat_map_cluster
  exfat: remove handling of non-file types in exfat_map_cluster
  exfat: reuse cache to improve exfat_get_cluster
  exfat: reduce the number of parameters for exfat_get_cluster()
  exfat: remove the unreachable warning for cache miss cases
  exfat: remove the check for infinite cluster chain loop
  exfat: improve exfat_find_last_cluster
  exfat: improve exfat_count_num_clusters
  exfat: support reuse buffer head for exfat_ent_get
  exfat: add cache option for __exfat_ent_get
  exfat: reduce unnecessary writes during mmap write
  exfat: improve error code handling in exfat_find_empty_entry()
This commit is contained in:
Linus Torvalds 2026-02-14 10:50:31 -08:00
commit dd530598bc
6 changed files with 170 additions and 125 deletions
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