kernel/linux.git/fs/exfat/file.c, branch v6.3

Merge tag 'exfat-for-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat

2023-03-01T16:42:27+00:00

Pull exfat updates from Namjae Jeon: - Handle vendor extension and allocation entries as unrecognized benign secondary entries - Fix wrong ->i_blocks on devices with non-512 byte sector - Add the check to avoid returning -EIO from exfat_readdir() at current position exceeding the directory size - Fix a bug that reach the end of the directory stream at a position not aligned with the dentry size - Redefine DIR_DELETED as 0xFFFFFFF7, the bad cluster number - Two cleanup fixes and fix cluster leakage in error handling * tag 'exfat-for-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat: exfat: fix the newly allocated clusters are not freed in error handling exfat: don't print error log in normal case exfat: remove unneeded code from exfat_alloc_cluster() exfat: handle unreconized benign secondary entries exfat: fix inode->i_blocks for non-512 byte sector size device exfat: redefine DIR_DELETED as the bad cluster number exfat: fix reporting fs error when reading dir beyond EOF exfat: fix unexpected EOF while reading dir

exfat: fix inode->i_blocks for non-512 byte sector size device

2023-02-27T12:14:45+00:00

inode->i_blocks is not real number of blocks, but 512 byte ones. Fixes: 98d917047e8b ("exfat: add file operations") Cc: stable@vger.kernel.org # v5.7+ Reported-by: Wang Yugui Tested-by: Wang Yugui Signed-off-by: Yuezhang Mo Reviewed-by: Andy Wu Signed-off-by: Namjae Jeon

fs: port ->getattr() to pass mnt_idmap

2023-01-19T08:24:25+00:00

Convert to struct mnt_idmap. Last cycle we merged the necessary infrastructure in 256c8aed2b42 ("fs: introduce dedicated idmap type for mounts"). This is just the conversion to struct mnt_idmap. Currently we still pass around the plain namespace that was attached to a mount. This is in general pretty convenient but it makes it easy to conflate namespaces that are relevant on the filesystem with namespaces that are relevent on the mount level. Especially for non-vfs developers without detailed knowledge in this area this can be a potential source for bugs. Once the conversion to struct mnt_idmap is done all helpers down to the really low-level helpers will take a struct mnt_idmap argument instead of two namespace arguments. This way it becomes impossible to conflate the two eliminating the possibility of any bugs. All of the vfs and all filesystems only operate on struct mnt_idmap. Acked-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Christian Brauner (Microsoft)

fs: port ->setattr() to pass mnt_idmap

2023-01-19T08:24:02+00:00

exfat: remove i_size_write() from __exfat_truncate()

2022-12-12T02:02:51+00:00

The file/directory size is updated into inode by i_size_write() before __exfat_truncate() is called, so it is redundant to re-update by i_size_write() in __exfat_truncate(). Code refinement, no functional changes. Signed-off-by: Yuezhang Mo Reviewed-by: Andy Wu Reviewed-by: Aoyama Wataru Reviewed-by: Sungjong Seo Signed-off-by: Namjae Jeon

exfat: remove argument 'size' from exfat_truncate()

2022-12-12T02:02:51+00:00

argument 'size' is not used in exfat_truncate(), remove it. Code refinement, no functional changes. Signed-off-by: Yuezhang Mo Reviewed-by: Andy Wu Reviewed-by: Aoyama Wataru Reviewed-by: Sungjong Seo Signed-off-by: Namjae Jeon

exfat: remove duplicate write inode for truncating file

2022-08-01T01:14:06+00:00

This commit moves updating file attributes and timestamps before calling __exfat_write_inode(), so that all updates of the inode had been written by __exfat_write_inode(), mark_inode_dirty() is unneeded. Signed-off-by: Yuezhang Mo Reviewed-by: Andy Wu Reviewed-by: Aoyama Wataru Reviewed-by: Daniel Palmer Reviewed-by: Sungjong Seo Signed-off-by: Namjae Jeon

exfat: reuse __exfat_write_inode() to update directory entry

2022-08-01T01:14:05+00:00

__exfat_write_inode() is used to update file and stream directory entries, except for file->start_clu and stream->flags. This commit moves update file->start_clu and stream->flags to __exfat_write_inode() and reuse __exfat_write_inode() to update directory entries. Signed-off-by: Yuezhang Mo Reviewed-by: Andy Wu Reviewed-by: Aoyama Wataru Reviewed-by: Daniel Palmer Reviewed-by: Sungjong Seo Signed-off-by: Namjae Jeon

block: add a bdev_discard_granularity helper

2022-04-18T01:49:59+00:00

Abstract away implementation details from file systems by providing a block_device based helper to retrieve the discard granularity. Signed-off-by: Christoph Hellwig Reviewed-by: Martin K. Petersen Acked-by: Christoph Böhmwalder [drbd] Acked-by: Ryusuke Konishi Acked-by: David Sterba [btrfs] Link: https://lore.kernel.org/r/20220415045258.199825-26-hch@lst.de Signed-off-by: Jens Axboe

block: remove QUEUE_FLAG_DISCARD

2022-04-18T01:49:59+00:00

Just use a non-zero max_discard_sectors as an indicator for discard support, similar to what is done for write zeroes. The only places where needs special attention is the RAID5 driver, which must clear discard support for security reasons by default, even if the default stacking rules would allow for it. Signed-off-by: Christoph Hellwig Reviewed-by: Martin K. Petersen Acked-by: Christoph Böhmwalder [drbd] Acked-by: Jan Höppner [s390] Acked-by: Coly Li [bcache] Acked-by: David Sterba [btrfs] Reviewed-by: Chaitanya Kulkarni Link: https://lore.kernel.org/r/20220415045258.199825-25-hch@lst.de Signed-off-by: Jens Axboe