kernel/fs/sysv/dir.c, branch linux-rolling-stable

sysv: Remove the filesystem

2025-02-21T09:32:47Z

Since 2002 (change "Replace BKL for chain locking with sysvfs-private rwlock") the sysv filesystem was doing IO under a rwlock in its get_block() function (yes, a non-sleepable lock hold over a function used to read inode metadata for all reads and writes). Nobody noticed until syzbot in 2023 [1]. This shows nobody is using the filesystem. Just drop it. [1] https://lore.kernel.org/all/0000000000000ccf9a05ee84f5b0@google.com/ Signed-off-by: Jan Kara Link: https://lore.kernel.org/r/20250220163940.10155-2-jack@suse.cz Reviewed-by: Jeff Layton Reviewed-by: "Darrick J. Wong" Signed-off-by: Christian Brauner

buffer: Convert block_write_end() to take a folio

2024-08-07T09:31:59Z

All callers now have a folio, so pass it in instead of converting from a folio to a page and back to a folio again. Saves a call to compound_head(). Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner

sysv: Convert dir_commit_chunk() to take a folio

2024-08-07T09:31:54Z

All callers now have a folio, so pass it in. Saves a call to compound_head(). Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner

sysv: Convert sysv_prepare_chunk() to take a folio

2024-08-07T09:31:54Z

All callers now have a folio, so convert sysv_prepare_chunk() to take one. Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner

sysv: Convert sysv_make_empty() to use a folio

2024-08-07T09:31:54Z

Removes a few hidden calls to compound_head(). Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner

sysv: Convert sysv_delete_entry() to work on a folio

2024-08-07T09:31:54Z

Match ext2 and remove a few hidden calls to compound_head(). Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner

sysv: Convert sysv_set_link() and sysv_dotdot() to take a folio

2024-08-07T09:31:53Z

This matches ext2 and removes a few hidden calls to compound_head(). Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner

sysv: Convert sysv_find_entry() to take a folio

2024-08-07T09:31:53Z

Remove a few hidden calls to compound_head(). Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner

sysv: Convert dir_get_page() to dir_get_folio()

2024-08-07T09:31:53Z

Remove a few conversions between page and folio. Reviewed-by: Josef Bacik Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Christian Brauner

sysv: convert to new timestamp accessors

2023-10-18T12:08:28Z

Convert to using the new inode timestamp accessor functions. Signed-off-by: Jeff Layton Link: https://lore.kernel.org/r/20231004185347.80880-69-jlayton@kernel.org Signed-off-by: Christian Brauner