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| author |  Christoph Hellwig <hch@lst.de>
| 2024-06-18 18:56:47 +1200 |
|---|---|---|
| committer |  Andrew Morton <akpm@linux-foundation.org>
| 2024-06-24 20:52:11 -0700 |
| commit | 54e7d59841dab977f6cb1183d658b1b82c9f4e94 (patch) | |
| tree | 32cde73972a09b3c0f2abbe002d88327ecc8d9b0 /kernel/bpf | |
| parent | mm/migrate: make migrate_pages_batch() stats consistent (diff) | |
| download | linux-54e7d59841dab977f6cb1183d658b1b82c9f4e94.tar.gz linux-54e7d59841dab977f6cb1183d658b1b82c9f4e94.tar.bz2 linux-54e7d59841dab977f6cb1183d658b1b82c9f4e94.zip | |
nfs: drop the incorrect assertion in nfs_swap_rw()
Since commit 2282679fb20b ("mm: submit multipage write for SWP_FS_OPS
swap-space"), we can plug multiple pages then unplug them all together.
That means iov_iter_count(iter) could be way bigger than PAGE_SIZE, it
actually equals the size of iov_iter_npages(iter, INT_MAX).
Note this issue has nothing to do with large folios as we don't support
THP_SWPOUT to non-block devices.
[v-songbaohua@oppo.com: figure out the cause and correct the commit message]
Link: https://lkml.kernel.org/r/20240618065647.21791-1-21cnbao@gmail.com
Fixes: 2282679fb20b ("mm: submit multipage write for SWP_FS_OPS swap-space")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Barry Song <v-songbaohua@oppo.com>
Closes: https://lore.kernel.org/linux-mm/20240617053201.GA16852@lst.de/
Reviewed-by: Martin Wege <martin.l.wege@gmail.com>
Cc: NeilBrown <neilb@suse.de>
Cc: Anna Schumaker <anna@kernel.org>
Cc: Steve French <sfrench@samba.org>
Cc: Trond Myklebust <trondmy@kernel.org>
Cc: Chuanhua Han <hanchuanhua@oppo.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Chris Li <chrisl@kernel.org>
Cc: "Huang, Ying" <ying.huang@intel.com>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'kernel/bpf')
0 files changed, 0 insertions, 0 deletions