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Increase link count limit to 2^31-1

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Originally, the per-file link limit was set to 65536 because the
exact Linux VFS limit was unclear.  Internally ZFS is able to
support 64-bit link counts.  After a more careful investigation
the limit can be safely raised to 2^31-1.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #514
This commit is contained in:
Brian Behlendorf 2012-01-13 11:35:05 -08:00
parent 58d956b085
commit a8783adf24
1 changed files with 3 additions and 3 deletions
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6
include/sys/zfs_vfsops.h
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@ -113,10 +113,10 @@ typedef struct zfs_sb {
/*
* Allow a maximum number of links. While ZFS does not internally limit
* this most Linux filesystems do. It's probably a good idea to limit
* this to a large value until it is validated that this is safe.
* this the inode->i_nlink member is defined as an unsigned int. To be
* safe we use 2^31-1 as the limit.
*/
#define ZFS_LINK_MAX 65536
#define ZFS_LINK_MAX ((1U << 31) - 1U)
/*
* Normal filesystems (those not under .zfs/snapshot) have a total