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fs: convert __generic_file_fsync to use errseq_t based reporting 

Many simple, block-based filesystems use generic_file_fsync as their
fsync operation. Some others (ext* and fat) also call this function
to handle syncing out data.

Switch this code over to use errseq_t based error reporting so that
all of these filesystems get reliable error reporting via fsync,
fdatasync and msync.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
zero-colors
Jeff Layton 2017-07-06 07:02:29 -04:00
parent 372cf243ea
commit 383aa543c2
1 changed files with 6 additions and 4 deletions
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10
fs/libfs.c
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@ -974,7 +974,7 @@ int __generic_file_fsync(struct file *file, loff_t start, loff_t end,
int err;
int ret;
err = filemap_write_and_wait_range(inode->i_mapping, start, end);
err = file_write_and_wait_range(file, start, end);
if (err)
return err;
@ -991,9 +991,11 @@ int __generic_file_fsync(struct file *file, loff_t start, loff_t end,
out:
inode_unlock(inode);
/* must call this unconditionally as it clears AS_* error flags */
err = filemap_check_errors(inode->i_mapping);
return ret ? ret : err;
/* check and advance again to catch errors after syncing out buffers */
err = file_check_and_advance_wb_err(file);
if (ret == 0)
ret = err;
return ret;
}
EXPORT_SYMBOL(__generic_file_fsync);