gfs2: Re-enable fallocate for the rindex (d4d7fc12) · Commits · 戴 / test

Commit "gfs2: Don't support fallocate on jdata files" removed the ability of gfs2_grow to reserve space at the end of the rindex, which could prevent a second gfs2_grow from succeeding if the fs is full. Allow fallocate to work on the rindex once again. Signed-off-by:

Andrew Price <anprice@redhat.com> Signed-off-by:

Bob Peterson <rpeterso@redhat.com>

fs/gfs2/file.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -911,11 +911,15 @@ out_qunlock:
		static long gfs2_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
		{
		struct inode *inode = file_inode(file);
		struct gfs2_sbd *sdp = GFS2_SB(inode);
		struct gfs2_inode *ip = GFS2_I(inode);
		struct gfs2_holder gh;
		int ret;

		if ((mode & ~FALLOC_FL_KEEP_SIZE) \|\| gfs2_is_jdata(ip))
		if (mode & ~FALLOC_FL_KEEP_SIZE)
		return -EOPNOTSUPP;
		/* fallocate is needed by gfs2_grow to reserve space in the rindex */
		if (gfs2_is_jdata(ip) && inode != sdp->sd_rindex)
		return -EOPNOTSUPP;

		inode_lock(inode);

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