[PATCH v2 0/4] FAT file renaming

[Daniel Venzin]

Rework of v1 posted by Burak Gerz [1].

[1] https://lore.kernel.org/u-boot/20241212221427.GM1505244@bill-the-cat/

Changes in v2:
- Adapt variable names for better consistency
- Add missing rename hooks
- Use EFI_ACCESS_DENIED for unsuccessful renames
- Avoid using of "== 0"
- Move the call to set_blk_dev earlier in the sequence
- Refactor delete_dentry_long for improved reusability
- Separate the rename implementation from changes in the filesystem layer
- Eliminate code duplication with delete_dentry_long(..)
- Ensure that the source file exists, but not the destination file
- Free the fatbuf if it has been reinitialized with fat_itr_root
- Delete orphaned FAT entry after copying file metadata

Daniel Venzin (4):
  fs: Add unimplemented rename hook to FS layer
  efi_loader: Support for file renaming
  fs: fat: Refactor delete_dentry_long interface
  fs: fat: Support basic file rename

 fs/fat/fat_write.c        | 134 +++++++++++++++++++++++++++++++++++---
 fs/fs.c                   |  30 +++++++++
 include/fat.h             |   1 +
 include/fs.h              |   9 +++
 lib/efi_loader/efi_file.c |  11 +++-
 5 files changed, 174 insertions(+), 11 deletions(-)

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2.47.2