Merge patch series 'Fix shmem_rename2 directory offset calculation' of https://lore.kernel.org/r/20240415152057.4605-1-cel@kernel.org

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Pull shmem_rename2() offset fixes from Chuck Lever:

The existing code in shmem_rename2() allocates a fresh directory
offset value when renaming over an existing destination entry. User
space does not expect this behavior. In particular, applications
that rename while walking a directory can loop indefinitely because
they never reach the end of the directory.

* 'Fix shmem_rename2 directory offset calculation' of https://lore.kernel.org/r/20240415152057.4605-1-cel@kernel.org: (3 commits)
  shmem: Fix shmem_rename2()
  libfs: Add simple_offset_rename() API
  libfs: Fix simple_offset_rename_exchange()

 fs/libfs.c         | 55 +++++++++++++++++++++++++++++++++++++++++-----
 include/linux/fs.h |  2 ++
 mm/shmem.c         |  3 +--
 3 files changed, 52 insertions(+), 8 deletions(-)

Signed-off-by: Christian Brauner <brauner@kernel.org>

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Christian Brauner 2024-04-17 13:49:56 +02:00

parent c6854e5a26 ad191eb6d6

commit 193feb69af

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GPG key ID: 91C61BC06578DCA2

3 changed files with 52 additions and 8 deletions

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55

fs/libfs.c

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2

include/linux/fs.h

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3

mm/shmem.c

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