kernel/linux.git/fs/ext2/file.c, branch v7.2-rc1

ext2: fix ignored return value of generic_write_sync()

2026-06-02T08:56:16+00:00

Fix ext2_dio_write_iter() to propagate the error returned by generic_write_sync() instead of silently discarding it, which could cause write(2) to return success to userspace on O_SYNC/O_DSYNC files even when the sync failed. The correct pattern, already used in ext2_dax_write_iter() in the same file and in ext4, xfs, f2fs among others, is: if (ret > 0) ret = generic_write_sync(iocb, ret); Found by Linux Verification Center (linuxtesting.org) with SVACE. [JK: Reflect also filemap_write_and_wait() return value] Fixes: fb5de4358e1a ("ext2: Move direct-io to use iomap") Signed-off-by: Danila Chernetsov Link: https://patch.msgid.link/20260530122311.136803-1-listdansp@mail.ru Signed-off-by: Jan Kara

ext2: Remove deprecated DAX support

2026-06-01T09:20:52+00:00

DAX support in ext2 was deprecated in commit d5a2693f93e4 ("ext2: Deprecate DAX") with a removal deadline of end of 2025. Remove all DAX code from ext2 as scheduled. This removes the DAX mount option, IOMAP DAX support, DAX file operations, DAX address_space_operations, and the DAX fault handler. [JK: Fixup some whitespace damage] Signed-off-by: Ashwin Gundarapu Link: https://patch.msgid.link/19e5aa07c9b.3a2e576d130187.5289857983023045470@zohomail.in Signed-off-by: Jan Kara

ext2: Track metadata bhs in fs-private inode part

2026-03-26T14:03:31+00:00

Track metadata bhs for an inode in fs-private part of the inode. Signed-off-by: Jan Kara Link: https://patch.msgid.link/20260326095354.16340-76-jack@suse.cz Signed-off-by: Christian Brauner

ext2: add setlease file operation

2026-01-12T09:55:45+00:00

Add the setlease file_operation to ext2_file_operations and ext2_dir_operations, pointing to generic_setlease. A future patch will change the default behavior to reject lease attempts with -EINVAL when there is no setlease file operation defined. Add generic_setlease to retain the ability to set leases on this filesystem. Signed-off-by: Jeff Layton Link: https://patch.msgid.link/20260108-setlease-6-20-v1-5-ea4dec9b67fa@kernel.org Acked-by: Al Viro Acked-by: Christoph Hellwig Reviewed-by: Jan Kara Signed-off-by: Christian Brauner

fs: convert most other generic_file_*mmap() users to .mmap_prepare()

2025-06-19T11:56:57+00:00

Update nearly all generic_file_mmap() and generic_file_readonly_mmap() callers to use generic_file_mmap_prepare() and generic_file_readonly_mmap_prepare() respectively. We update blkdev, 9p, afs, erofs, ext2, nfs, ntfs3, smb, ubifs and vboxsf file systems this way. Remaining users we cannot yet update are ecryptfs, fuse and cramfs. The former two are nested file systems that must support any underlying file ssytem, and cramfs inserts a mixed mapping which currently requires a VMA. Once all file systems have been converted to mmap_prepare(), we can then update nested file systems. Signed-off-by: Lorenzo Stoakes Link: https://lore.kernel.org/08db85970d89b17a995d2cffae96fb4cc462377f.1750099179.git.lorenzo.stoakes@oracle.com Signed-off-by: Christian Brauner

ext2: set FMODE_CAN_ODIRECT instead of a dummy direct_IO method

2024-04-04T14:27:54+00:00

Since commit a2ad63daa88b ("VFS: add FMODE_CAN_ODIRECT file flag") file systems can just set the FMODE_CAN_ODIRECT flag at open time instead of wiring up a dummy direct_IO method to indicate support for direct I/O. Signed-off-by: Ritesh Harjani (IBM) Signed-off-by: Jan Kara Message-Id: <94f78492f55c3f421359fb6e0d8fab6e79ea17b2.1709215665.git.ritesh.list@gmail.com>

ext2: Fix ki_pos update for DIO buffered-io fallback case

2023-11-22T09:17:10+00:00

Commit "filemap: update ki_pos in generic_perform_write", made updating of ki_pos into common code in generic_perform_write() function. This also causes generic/091 to fail. This happened due to an in-flight collision with: fb5de4358e1a ("ext2: Move direct-io to use iomap"). I have chosen fixes tag based on which commit got landed later to upstream kernel. Fixes: 182c25e9c157 ("filemap: update ki_pos in generic_perform_write") Cc: stable@vger.kernel.org Reviewed-by: Christoph Hellwig Signed-off-by: Ritesh Harjani (IBM) Signed-off-by: Jan Kara Message-Id:

mm: remove enum page_entry_size

2023-08-24T23:20:30+00:00

Remove the unnecessary encoding of page order into an enum and pass the page order directly. That lets us get rid of pe_order(). The switch constructs have to be changed to if/else constructs to prevent GCC from warning on builds with 3-level page tables where PMD_ORDER and PUD_ORDER have the same value. If you are looking at this commit because your driver stopped compiling, look at the previous commit as well and audit your driver to be sure it doesn't depend on mmap_lock being held in its ->huge_fault method. [willy@infradead.org: use "order %u" to match the (non dev_t) style] Link: https://lkml.kernel.org/r/ZOUYekbtTv+n8hYf@casper.infradead.org Link: https://lkml.kernel.org/r/20230818202335.2739663-4-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Andrew Morton

Merge tag 'fs_for_v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2023-06-29T20:39:51+00:00

Pull misc filesystem updates from Jan Kara: - Rewrite kmap_local() handling in ext2 - Convert ext2 direct IO path to iomap (with some infrastructure tweaks associated with that) - Convert two boilerplate licenses in udf to SPDX identifiers - Other small udf, ext2, and quota fixes and cleanups * tag 'fs_for_v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: udf: Fix uninitialized array access for some pathnames ext2: Drop fragment support quota: fix warning in dqgrab() quota: Properly disable quotas when add_dquot_ref() fails fs: udf: udftime: Replace LGPL boilerplate with SPDX identifier fs: udf: Replace GPL 2.0 boilerplate license notice with SPDX identifier fs: Drop wait_unfrozen wait queue ext2_find_entry()/ext2_dotdot(): callers don't need page_addr anymore ext2_{set_link,delete_entry}(): don't bother with page_addr ext2_put_page(): accept any pointer within the page ext2_get_page(): saner type ext2: use offset_in_page() instead of open-coding it as subtraction ext2_rename(): set_link and delete_entry may fail ext2: Add direct-io trace points ext2: Move direct-io to use iomap ext2: Use generic_buffers_fsync() implementation ext4: Use generic_buffers_fsync_noflush() implementation fs/buffer.c: Add generic_buffers_fsync*() implementation ext2/dax: Fix ext2_setsize when len is page aligned

splice: Use filemap_splice_read() instead of generic_file_splice_read()

2023-05-24T14:42:17+00:00

Replace pointers to generic_file_splice_read() with calls to filemap_splice_read(). Signed-off-by: David Howells Reviewed-by: Christoph Hellwig Reviewed-by: Christian Brauner cc: Jens Axboe cc: Al Viro cc: David Hildenbrand cc: John Hubbard cc: linux-mm@kvack.org cc: linux-block@vger.kernel.org cc: linux-fsdevel@vger.kernel.org Link: https://lore.kernel.org/r/20230522135018.2742245-29-dhowells@redhat.com Signed-off-by: Jens Axboe