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Giving a name to this enum makes it discoverable from debugging tools like DRGN and SDB. For example, with the name proposed on this patch we can iterate over these values in DRGN: ``` >>> prog.type('enum kmc_bit').enumerators (('KMC_BIT_NOTOUCH', 0), ('KMC_BIT_NODEBUG', 1), ('KMC_BIT_NOMAGAZINE', 2), ('KMC_BIT_NOHASH', 3), ('KMC_BIT_QCACHE', 4), ('KMC_BIT_KMEM', 5), ('KMC_BIT_VMEM', 6), ('KMC_BIT_SLAB', 7), ... ``` This enables SDB to easily pretty-print the flags of the spl_kmem_caches in the system like this: ``` > spl_kmem_caches -o "name,flags,total_memory" name flags total_memory ------------------------ ----------------------- ------------ abd_t KMC_NOMAGAZINE|KMC_SLAB 4.5MB arc_buf_hdr_t_full KMC_NOMAGAZINE|KMC_SLAB 12.3MB ... <cropped> ... ddt_cache KMC_VMEM 583.7KB ddt_entry_cache KMC_NOMAGAZINE|KMC_SLAB 0.0B ... <cropped> ... zio_buf_1048576 KMC_NODEBUG|KMC_VMEM 0.0B ... <cropped> ... ``` Reviewed-by: Matt Ahrens <matt@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Serapheim Dimitropoulos <serapheim@delphix.com> Closes #9478 |
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zfs.release.in |
ZFS on Linux is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community.
Official Resources
Installation
Full documentation for installing ZoL on your favorite Linux distribution can be found at our site.
Contribute & Develop
We have a separate document with contribution guidelines.
Release
ZFS on Linux is released under a CDDL license.
For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197
Supported Kernels
- The
META
file contains the officially recognized supported kernel versions.