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Bump pseudofs size limit from 128kB to 1MB. The old limit could result

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in process' memory maps being truncated.

PR:		237883
Submitted by:	dchagin
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D20575
This commit is contained in:
Edward Tomasz Napierala 2020-10-16 09:58:10 +00:00
parent a59b0ac3aa
commit ce764cbd1c
1 changed files with 4 additions and 2 deletions
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6
sys/fs/pseudofs/pseudofs_vnops.c
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@ -68,6 +68,8 @@ __FBSDID("$FreeBSD$");
KASSERT((pn)->pn_type == pfstype_symlink, \
("%s(): VLNK vnode refers to non-link pfs_node", __func__))
#define PFS_MAXBUFSIZ 1024 * 1024
/*
* Returns the fileno, adjusted for target pid
*/
@ -677,8 +679,8 @@ pfs_read(struct vop_read_args *va)
goto ret;
}
buflen = uio->uio_offset + uio->uio_resid;
if (buflen > MAXPHYS)
buflen = MAXPHYS;
if (buflen > PFS_MAXBUFSIZ)
buflen = PFS_MAXBUFSIZ;
sb = sbuf_new(sb, NULL, buflen + 1, 0);
if (sb == NULL) {