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| author | Paolo Bonzini <pbonzini@redhat.com> | 2020-09-22 06:43:17 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-09-22 06:43:17 -0400 |
| commit | bf3c0e5e7102f5787d693379d9d384b813fe890b (patch) | |
| tree | aa48fc57dee9ecdf99918affa38d1b06be41419a /fs/buffer.c | |
| parent | 32251b07d532174d66941488c112ec046f646157 (diff) | |
| parent | 976bc5e2aceedef13e0ba1f0e6e372a22164aa0c (diff) | |
| download | kernel_replicant_linux-bf3c0e5e7102f5787d693379d9d384b813fe890b.tar.gz kernel_replicant_linux-bf3c0e5e7102f5787d693379d9d384b813fe890b.tar.bz2 kernel_replicant_linux-bf3c0e5e7102f5787d693379d9d384b813fe890b.zip | |
Merge branch 'x86-seves-for-paolo' of https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into HEAD
Diffstat (limited to 'fs/buffer.c')
| -rw-r--r-- | fs/buffer.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/fs/buffer.c b/fs/buffer.c index 061dd202979d..50bbc99e3d96 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -1958,7 +1958,7 @@ iomap_to_bh(struct inode *inode, sector_t block, struct buffer_head *bh, */ set_buffer_new(bh); set_buffer_unwritten(bh); - /* FALLTHRU */ + fallthrough; case IOMAP_MAPPED: if ((iomap->flags & IOMAP_F_NEW) || offset >= i_size_read(inode)) @@ -3157,6 +3157,15 @@ int __sync_dirty_buffer(struct buffer_head *bh, int op_flags) WARN_ON(atomic_read(&bh->b_count) < 1); lock_buffer(bh); if (test_clear_buffer_dirty(bh)) { + /* + * The bh should be mapped, but it might not be if the + * device was hot-removed. Not much we can do but fail the I/O. + */ + if (!buffer_mapped(bh)) { + unlock_buffer(bh); + return -EIO; + } + get_bh(bh); bh->b_end_io = end_buffer_write_sync; ret = submit_bh(REQ_OP_WRITE, op_flags, bh); |