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ext4: propagate errors from ext4_find_extent() in ext4_insert_range()

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commit 369c944ed1 upstream.

Even though ext4_find_extent() returns an error, ext4_insert_range() still
returns 0. This may confuse the user as to why fallocate returns success,
but the contents of the file are not as expected. So propagate the error
returned by ext4_find_extent() to avoid inconsistencies.

Fixes: 331573febb ("ext4: Add support FALLOC_FL_INSERT_RANGE for fallocate")
Cc: stable@kernel.org
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Tested-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Link: https://patch.msgid.link/20240822023545.1994557-11-libaokun@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Baokun Li 2024-08-22 10:35:30 +08:00 committed by Greg Kroah-Hartman
parent 8fe117790b
commit f4308d8ee3
1 changed files with 1 additions and 0 deletions
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1
fs/ext4/extents.c
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@ -5549,6 +5549,7 @@ static int ext4_insert_range(struct file *file, loff_t offset, loff_t len)
path = ext4_find_extent(inode, offset_lblk, NULL, 0);
if (IS_ERR(path)) {
up_write(&EXT4_I(inode)->i_data_sem);
ret = PTR_ERR(path);
goto out_stop;
}